Michael O'Neill

Acting

Michael O'Neill

Born

1947-05-29 (79)

Place of birth

Montgomery, Alabama, USA

Known for

Acting

Credits

83 titles

​From Wikipedia, the free encyclopedia. Michael O'Neill (born May 29, 1951) is an American actor. With a career stretching through three decades, he usually portrays senior law enforcement or military officers. He is perhaps best known for his role as Special agent Ron Butterfield, the head of President Josiah Bartlet's Secret Service detail, on The West Wing. He played CTU Administrative Director Richard Walsh in the first two episodes of 24. He played Sgt. Maj. Ron Cheals in the CBS action-drama series The Unit. He starred in the Season Six 2 part Finale of Grey's Anatomy as the broken widower who holds the hospital hostage with a 9mm while pursuing the doctors responsible for unplugging …

Known for

Film credits

2020s · 5 titles

2010s · 8 titles

Dallas Buyers Club poster
7.9

Loosely based on the true-life tale of Ron Woodroof, a drug-taking, women-loving, homophobic man who in 1986 was diagnosed with HIV/AIDS and given thirty days to live.

Dallas Buyers Club

2013

Green Zone poster
6.5

During the U.S.-led occupation of Baghdad in 2003, Chief Warrant Officer Roy Miller and his team of Army inspectors are dispatched to find weapons of mass destruction believed to be stockpiled in the Iraqi desert. Rocketing from one booby-trapped and treacherous site to the next, the men search for deadly chemical agents but stumble instead upon an elaborate cover-up that threatens to invert the purpose of their mission.

Green Zone

2010

J. Edgar poster
6.2

As the face of law enforcement in the United States for almost 50 years, J. Edgar Hoover was feared and admired, reviled and revered. But behind closed doors, he held secrets that would have destroyed his image, his career, and his life.

J. Edgar

2011

Danger One poster
6.1

While transporting a dying man to the hospital, two paramedics find a million dollars in cash sewn into his clothing. When the man dies, they decide to keep it, setting them on a path for a hellish night of violence and mayhem.

Danger One

2018

Clemency poster
6.3

Years of carrying out death row executions have taken a toll on prison warden Bernadine Williams. As she prepares to execute another inmate, Bernadine must confront the psychological and emotional demons her job creates, ultimately connecting her to the man she is sanctioned to kill.

Clemency

2019

Indivisible poster
7.0

Upon returning from serving in the U.S. Army, Chaplain Darren Turner faces a crisis that shatters his Family and Faith in God but through the help of his fellow soldiers, he returns to his faith and family

Indivisible

2018

Flying Lessons poster
5.6

With her life at a crossroads, 25 year old Sophie Conway returns home to the small town she always wanted to forget. Once home, she is faced with the friends and lovers she left behind, a tangled relationship with her Mother, and Harry Pleasant, an Alzheimer's Disease patient who, in an opposing way, shares Sophie's struggle to remember.

Flying Lessons

2010

The Grim Sleeper poster
4.9

Journalist Christine Pelisek helps law enforcement investigate the alleged serial killer known as the Grim Sleeper.

The Grim Sleeper

2014

2000s · 11 titles

Traffic poster
7.1

An exploration of the United States of America's war on drugs from multiple perspectives. For the new head of the Office of National Drug Control Policy, the war becomes personal when he discovers his well-educated daughter is abusing cocaine within their comfortable suburban home. In Mexico, a flawed, but noble policeman agrees to testify against a powerful general in league with a cartel, and in San Diego, a drug kingpin's sheltered trophy wife must learn her husband's ruthless business after he is arrested, endangering her luxurious lifestyle.

Traffic

2000

Secondhand Lions poster
7.2

The comedic adventures of an introverted boy left on the doorstep of a pair of reluctant, eccentric great-uncles, whose exotic remembrances stir the boy's spirit and re-ignite the men's lives.

Secondhand Lions

2003

Seabiscuit poster
7.1

True story of the undersized Depression-era racehorse whose victories lifted not only the spirits of the team behind it but also those of their nation.

Seabiscuit

2003

Transformers poster
6.8

Young teenager Sam Witwicky becomes involved in the ancient struggle between two extraterrestrial factions of transforming robots – the heroic Autobots and the evil Decepticons. Sam holds the clue to unimaginable power and the Decepticons will stop at nothing to retrieve it.

Transformers

2007

Dreamcatcher poster
5.7

Four childhood friends reunite for a hunting trip in the Maine woods, bound by a psychic force born from a childhood friend's dreamcatcher. They find themselves caught in a grotesque alien invasion that twists memory, sanity and reality into something far more sinister.

Dreamcatcher

2003

The Legend of Bagger Vance poster
6.6

World War I has left golfer Rannulph Junuh a poker-playing alcoholic, his perfect swing gone. Now, however, he needs to get it back to play in a tournament to save the financially ravaged golf course of a long-ago sweetheart. Help arrives in the form of mysterious caddy Bagger Vance.

The Legend of Bagger Vance

2000

Nothing But the Truth poster
6.9

When reporter Rachel Armstrong writes a story that reveals the identity of a covert CIA operative, the government demands that Rachel reveal her source. She defies the special prosecutor and is thrown in jail. Meanwhile, her attorney, Albert Burnside argues her case all the way to the U.S. Supreme Court.

Nothing But the Truth

2008

Around the Bend poster
5.9

A tale of four generations of men, all of whom have had their offspring at a young age: a great-grandfather, a grandfather, a father in his twenties and a son who is about 7 years old. When the oldest member passes away, the trio heads out on the road together in the Southwest to search out an old family secret that connects to their past.

Around the Bend

2004

Crazy poster
5.5

Crazy is the story of a legendary guitar player who emerged from Nashville in the 1950s. Blessed with incomparable, natural talent, Hank Garland quickly established his reputation as the finest sessions player in Nashville.

Crazy

2008

A Quiet Little Marriage poster
5.1

A Quiet Little Marriage is the love story of Dax and Olive, who manage to find harmony even as they juggle family, romance and intimacy, but that all changes the night she asks him for a baby. Writer/director Mo Perkins’ intense and profound, raw feature debut is laced with sly humor, exquisitely rendered characters, and a pitch-perfect emotional honesty.

A Quiet Little Marriage

2008

American Crime poster
3.7

A news team hunts for a serial killer who stalks victims via videotape and then records the ghastly deed.

American Crime

2004

1990s · 15 titles

Blind Justice poster
5.3

Canaan, a mysterious gunfighter left nearly blind from Civil War combat, roams through Mexico with a baby he has sworn to protect. On his way to a town where a family will supposedly adopt the baby, Canaan passes through a border town where U.S. Cavalry officers assigned to deliver a shipment of silver are under attack from bandits. With some reluctance, Canaan steps in to help the soldiers.

Blind Justice

1994

Jennifer Eight poster
6.1

John Berlin, a big-city cop from LA moves to a small-town police force and immediately finds himself investigating a murder. Using theories rejected by his colleagues, Berlin meets a young blind woman named Helena, whom he is attracted to. Meanwhile, a serial killer is on the loose—and only John knows it.

Jennifer Eight

1992

Lorenzo's Oil poster
7.1

Lorenzo Odone, a Virginia 5-year-old, develops a degenerative nerve disease so rare that nobody is working on a cure, so his parents decide to immerse themselves in research and tackle the problem themselves.

Lorenzo's Oil

1992

Bushwhacked poster
5.4

A inept courier realises he has been used by criminals to deliver money. On the run from both the criminals and police, he poses as a Scout leader and leads a scout group on a hike through the mountains.

Bushwhacked

1995

The Sunchaser poster
6.3

A young half-Navajo convict dying of cancer forces a yuppie doctor to drive him to a magic healing lake.

The Sunchaser

1996

The Mod Squad poster
4.4

Three youthful delinquents escape conviction for their crimes by teaming with the LAPD.

The Mod Squad

1999

For Their Own Good poster
6.3

A factory worker gets an ultimatum from her employer that she agree to be sterilized or be fired.

For Their Own Good

1993

Dancer, Texas Pop. 81 poster
7.0

Four guys, best friends, have grown up together in DANCER, TEXAS POP. 81, a tiny town in West Texas. Years ago, they made a solemn vow to leave town together as soon as they graduate. Now, it's that weekend and the time has come to "put up or shut up." The clock is ticking and as all 81 people in the town watch, comment, offer advice and place bets, these four very different boys with unique backgrounds struggle with the biggest decision of their lives... whether to stay or leave home.

Dancer, Texas Pop. 81

1998

The Gun in Betty Lou's Handbag poster
5.1

A Southern librarian puts excitement in her life with a found murder weapon and a false confession.

The Gun in Betty Lou's Handbag

1992

ATF poster
5.8

In the wake of the tragic events at Waco, Texas where an armed conflict with armed militiamen broke out, agents of the federal government's Alcohol, Tobacco, and Firearms (ATF) carry out a clandestine mission within another militia operation that is possibly involved in the sales of guns and the murder of an agent. Agent Robin O'Brien infiltrates the operation against her director's orders. When events start unraveling and an FBI agent threatens to take over the operation and start a military action, the ATF agents have to apply what they learned from Waco to save another blood bath.

ATF

1999

Victim of Love: The Shannon Mohr Story poster
7.6

When a woman dies in a supposed accident, her parents suspect their son-in-law of foul play. When the police begin to agree, the murder suspect vanishes.

Victim of Love: The Shannon Mohr Story

1993

Standoff poster
6.0

The FBI and Texas police make ready to storm the headquarters of a heavily armed sect of religious fanatics. But the operation goes horribly wrong and a couple of agents seek protection at an abandoned farm. But they are not the only ones there.

Standoff

1998

Awake to Danger poster
6.8

Recently awakened from a coma, a traumatized adolescent girl fights to remember the circumstances surrounding her mother's brutal death. But as the details slowly come into focus, a killer watches and waits.

Awake to Danger

1995

Beyond Betrayal poster
6.5

Joanne is married to Bradley, a cop who abuses her. One day she decides to run away and meets Sam, who has marital difficulties of his own. Bradley evetually tracks Joanne down, which leads to the death of Sam's wife.

Beyond Betrayal

1994

Virtual Obsession poster
3.9

If you were a brilliant young scientist diagnosed with only months to live, what choices would you make? To have faith that you were taken early for a reason and go quietly, or to use cryogenics to hope you could be cured someday in the future, or to download your consciousness into computer memory where you could still continue to interact with the ones you love?

Virtual Obsession

1998

1980s · 3 titles

Series credits

NCIS poster
7.6

From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has any connection to Navy and Marine Corps personnel, regardless of rank or position.

NCIS

2003

The Mentalist poster
8.4

Patrick Jane, a former celebrity psychic medium, uses his razor sharp skills of observation and expertise at "reading" people to solve serious crimes with the California Bureau of Investigation.

The Mentalist

2008

Grey's Anatomy poster
8.2

Follows the personal and professional lives of a group of doctors at Seattle's Grey Sloan Memorial Hospital.

Grey's Anatomy

2005

Criminal Minds poster
8.3

An elite team of FBI profilers analyze the country's most twisted criminal minds, anticipating their next moves before they strike again. The Behavioral Analysis Unit's most experienced agent is David Rossi, a founding member of the BAU who returns to help the team solve new cases.

Criminal Minds

2005

CSI: Miami poster
7.7

The show follows Crime Scene Investigators working for the Miami-Dade Police Department as they use physical evidence, similar to their Las Vegas counterparts, to solve grisly murders. The series mixes deduction, gritty subject matter, and character-driven drama in the same vein as the original series in the CSI franchise, except that the Miami CSIs are cops first, scientists second.

CSI: Miami

2002

NCIS: Los Angeles poster
7.5

The exploits of the Los Angeles–based Office of Special Projects (OSP), an elite division of the Naval Criminal Investigative Service that specializes in undercover assignments.

NCIS: Los Angeles

2009

Prison Break poster
8.1

Due to a political conspiracy, an innocent man is sent to death row and his only hope is his brother, who makes it his mission to deliberately get himself sent to the same prison in order to break the both of them out, from the inside out.

Prison Break

2005

S.W.A.T. poster
8.0

A Los Angeles S.W.A.T. sergeant is assigned to lead a highly skilled unit in the community where he grew up. Torn between loyalty to the streets, where the cops are sometimes the enemy, and allegiance to his brothers in blue, he strategically straddles the two worlds.

S.W.A.T.

2017

The X-Files poster
8.4

The exploits of FBI Special Agents Fox Mulder and Dana Scully who investigate X-Files: marginalized, unsolved cases involving paranormal phenomena. Mulder believes in the existence of aliens and the paranormal while Scully, a skeptic, is assigned to make scientific analyses of Mulder's discoveries that debunk Mulder's work and thus return him to mainstream cases.

The X-Files

1993

24 poster
7.8

Counterterrorism agent Jack Bauer fights the bad guys of the world, a day at a time. With each week's episode unfolding in real-time, "24" covers a single day in the life of Bauer each season.

24

2001

24 poster
7.8

Counterterrorism agent Jack Bauer fights the bad guys of the world, a day at a time. With each week's episode unfolding in real-time, "24" covers a single day in the life of Bauer each season.

24

2001

JAG poster
7.3

Harmon "Harm" Rabb Jr. is a former pilot turned lawyer working for the military's JAG (Judge Advocate General) division, the elite legal wing of officers that prosecutes and defends those accused of military-related crimes. He works closely with Lt. Col. Sarah Mackenzie, and together they do what needs to be done to find the truth.

JAG

1995

Diagnosis: Murder poster
7.1

Dr. Mark Sloan is a good-natured, offbeat physician who is called upon to solve murders.

Diagnosis: Murder

1993

Sons of Anarchy poster
8.4

The Sons of Anarchy (SOA) are an outlaw motorcycle club with many charters in the United States and overseas. The show focused on the original and founding charter, Sons of Anarchy Motorcycle Club, Redwood Original, often referred to by the acronym SAMCRO, Sam Crow, or simply Redwood Charter. The charter operates both legal and illegal businesses in the small town of Charming, California. They combine gun-running and a garage, and involvement in porn film industry. Clay, the charter president, likes it old school and violent; while Jax, his stepson and the club's VP, has thoughts about changing the way things are done. Their conflict has effects on both the club and their personal relationship, especially when Jax goes on a personal quest to cleanse the SAMCRO name and image.

Sons of Anarchy

2008

Fringe poster
8.1

FBI Special Agent Olivia Dunham, brilliant but formerly institutionalized scientist Walter Bishop and his scheming, reluctant son Peter uncover a deadly mystery involving a series of unbelievable events and realize they may be a part of a larger, more disturbing pattern that blurs the line between science fiction and technology.

Fringe

2008

The West Wing poster
8.3

The West Wing provides a glimpse into presidential politics in the nation's capital as it tells the stories of the members of a fictional presidential administration. These interesting characters have humor and dedication that touches the heart while the politics that they discuss touch on everyday life.

The West Wing

1999

ER poster
7.8

ER explores the inner workings of an urban teaching hospital and the critical issues faced by the dedicated physicians and staff of its overburdened emergency room.

ER

1994

Without a Trace poster
7.2

The series follows the ventures of a Missing Persons Unit of the FBI in New York City.

Without a Trace

2002

Rizzoli & Isles poster
7.9

Perhaps their strikingly different personalities make the relationship between detective Jane Rizzoli and medical examiner Maura Isles so effective. Jane, the only female cop in Boston's homicide division, is tough, relentless and rarely lets her guard down, while the impeccably dressed Maura displays a sometimes icy temperament — she is, after all, more comfortable among the dead than the living. Together, the best friends have forged a quirky and supportive relationship; they drop the protective shield in each other's company, and combine their expertise to solve Boston's most complex cases.

Rizzoli & Isles

2010

This Is Us poster
8.2

Follows the lives and families of three adults living and growing up in the United States of America in present and past times. As their paths cross and their life stories intertwine in curious ways, we find that several of them share the same birthday - and so much more than anyone would expect.

This Is Us

2016

Tracker poster
7.6

Lone-wolf survivalist Colter Shaw roams the country as a “reward seeker,” using his expert tracking skills to help private citizens and law enforcement solve all manner of mysteries while contending with his own fractured family.

Tracker

2024

Scandal poster
7.2

Everyone has secrets and Olivia Pope has dedicated her life to protecting and defending the public images of the elite by keeping those secrets under wraps. Pope and her team are at the top of their game when it comes to getting the job done for their clients, but it becomes apparent that these "gladiators in suits," who specialize in fixing the lives of other people, have trouble fixing those closest at hand -- their own.

Scandal

2012

Boston Legal poster
7.9

Alan Shore and Denny Crane lead a brigade of high-priced civil litigators in an upscale Boston law firm in a series focusing on the professional and personal lives of brilliant but often emotionally challenged attorneys. A spin-off of long-running series The Practice.

Boston Legal

2004

Chicago Hope poster
7.2

Chicago Hope is an American medical drama television series, created by David E. Kelley. It ran on CBS from September 18, 1994, to May 4, 2000. The series is set in a fictional private charity hospital in Chicago, Illinois.

Chicago Hope

1994

Bates Motel poster
8.0

A "contemporary prequel" to the 1960 film Psycho, depicting the life of Norman Bates and his mother Norma prior to the events portrayed in Hitchcock's film, albeit in a different fictional town and in a modern setting. The series begins after the death of Norma's husband, when she purchases a motel located in a coastal Oregon town so she and Norman can start a new life.

Bates Motel

2013

Numb3rs poster
7.0

Inspired by actual cases and experiences, Numb3rs depicts the confluence of police work and mathematics in solving crime as an FBI agent recruits his mathematical genius brother to help solve a wide range of challenging crimes in Los Angeles from a very different perspective.

Numb3rs

2005

The Practice poster
7.6

A provocative legal drama focused on young associates at a bare-bones Boston firm and their scrappy boss, Bobby Donnell. The show's forte is its storylines about “people who walk a moral tightrope.”

The Practice

1997

The Resident poster
8.4

A tough, brilliant senior resident guides an idealistic young doctor through his first day, pulling back the curtain on what really happens, both good and bad, in modern-day medicine.

The Resident

2018

Ghost Whisperer poster
8.1

Newlywed Melinda Gordon tries to help the dead communicate with loved ones, but sometimes the messages she receives are intense and confusing. Most of Melinda's efforts involve resolving conflicts that are preventing the spirits from passing over.

Ghost Whisperer

2005

Crossing Jordan poster
7.2

Crossing Jordan is an American television crime/drama series that stars Jill Hennessy as Jordan Cavanaugh, M.D., a crime-solving forensic pathologist employed in the Massachusetts Office of the Chief Medical Examiner.

Crossing Jordan

2001

Army Wives poster
7.5

Army Wives is an American drama series that follows the lives of four army wives, one army husband, and their families.

Army Wives

2007

Fire Country poster
8.0

Seeking redemption and a shortened prison sentence, young convict Bode Donovan joins a firefighting program that returns him to his small Northern California hometown, where he and other inmates work alongside elite firefighters to extinguish massive blazes across the region.

Fire Country

2022

The Unit poster
7.4

A covert team of special forces operatives risk their lives on undercover missions around the globe, while their wives maintain the homefront, protecting their husbands' secrets.

The Unit

2006

Tom Clancy's Jack Ryan poster
7.7

When CIA analyst Jack Ryan stumbles upon a suspicious series of bank transfers his search for answers pulls him from the safety of his desk job and catapults him into a deadly game of cat and mouse throughout Europe and the Middle East, with a rising terrorist figurehead preparing for a massive attack against the US and her allies.

Tom Clancy's Jack Ryan

2018

Millennium poster
7.7

A retired FBI serial-profiler joins the mysterious Millennium Group, a team of underground ex-law enforcement experts dedicated to fighting against the ever-growing forces of evil and darkness in the world.

Millennium

1996

Boston Public poster
7.6

Principal Steven Harper runs Winslow High School as best as he can while dealing with the demands of the faculty, the students and their parents.

Boston Public

2000

Leverage poster
7.6

A five-person team comprised of a thief, a grifter, a hacker, and a retrieval specialist, led by former insurance investigator Nathan Ford, use their skills to fight corporate and governmental injustices inflicted on ordinary citizens.

Leverage

2008

Roswell poster
7.7

Bizarre things start happening in the little New Mexico town where UFOs were spotted in 1947. Cut to 1999, when a cute high-school student saves the life of a teenage waitress. Surrounded by cliques of clever, angst-filled classmates, the two form a bond that threatens the survival of a secret universe involving superhuman powers, a yen for hot sauce and an alien gene pool.

Roswell

1999

Shooter poster
7.2

Bob Lee Swagger is an expert marksman living in exile who is coaxed back into action after learning of a plot to kill the president.

Shooter

2016

Outer Range poster
6.9

A rancher fighting for his land and family stumbles upon an unfathomable mystery at the edge of Wyoming’s wilderness, forcing a confrontation with the Unknown in ways both intimate and cosmic in the untamable American West.

Outer Range

2022

Behind the camera