Writing

Ronald Davidson

Acting credits

Behind the camera

Spy Smasher poster
6.1

Prior to the United States' involvement in World War II, the masked vigilante Spy Smasher fights Nazi agents operating within the US, led by the treacherous sabotage leader codenamed The Mask.

Spy Smasher

1942

Adventures of Captain Marvel poster
6.4

On a scientific expedition to Siam young Billy Batson is given the ability to change himself into the super-powered Captain Marvel by the wizard Shazam, who tells him his powers will last only as long as the Golden Scorpion idol is threatened. Finding the idol, the scientists realize it could be the most powerful weapon in the world and remove the lenses that energize it, distributing them among themselves so that no one would be able to use the idol by himself. Back in the US, Billy Batson, as Captain Marvel, wages a battle against an evil, hooded figure, the Scorpion, who hopes to accumulate all five lenses, thereby gaining control of the super-powerful weapon

Adventures of Captain Marvel

1941

Captain America poster
5.3

Superhero Captain America battles the evil forces of the archvillain called The Scarab, who poisons his enemies and steals a secret device capable of destroying buildings by sound vibrations.

Captain America

1944

Triggerman poster
8.0

Johnny Mack (Johnny Mack Brown ) is hired by Lois Benton (Virginia Carroll) as a hand on her ranch, formerly run by Daley, who is in jail on a payroll theft charge. Despite the warning for foreman Rusty Steele (Raymond Hatton), Johnny sees real estate agent Kirby (Bill Kennedy), who wants to buy the Benton ranch. When Johnny refuses to align with Kirby, he is forced to knock out henchman Moran (Marshall Reed) in a fist fight. Rusty finds on henchman Harris (Forrest Matthews), when he is caught spying on the ranch, half a map revealing the location of the missing payroll.

Triggerman

1948

Radar Men from the Moon poster
4.6

Commando Cody, 'Sky Marshal of the Universe', works with American scientists Joan Gilbert and Ted Richards in the development of a flying suit and a rocket to the Moon. When the nation's defences are being sabotaged and destroyed, Cody learns that an atomic-gun is being used and that the men on the moon are the culprits.

Radar Men from the Moon

1952

Don Daredevil Rides Again poster
8.0

Stock-footage from Republic Pictures' earlier Zorro serials was served up once again in this 12 chapter cliffhanger, this time without the financially strapped studio having to credit Zorro creator Johnston McCulley or pay any royalties. Zorro simply became "Don Daredevil" (Ken Curtis), a foppish Easterner by day turned masked avenger by night. Like his not too distant relative, Don wore his disguise in order to battle nasty Roy Barcroft who, under a forged Spanish land grant, attempts to take over the surrounding ranch land.

Don Daredevil Rides Again

1951

Dick Tracy's G-Men poster
5.3

A mad doctor named Zanoff uses a drug to bring himself back from the dead after his execution in prison. Dick Tracy sets out to capture Zanoff before he can put his criminal gang back together again.

Dick Tracy's G-Men

1939

Zorro's Fighting Legion poster
5.4

The mysterious Don Del Oro ("Lord of Gold"), an idol of the Yaqui Indians, plans to take over the gold and become Emperor. Francisco was put in charge of a legion to combat the Yaqui tribe and protect the land, but when attacked Zorro came to his rescue. Francisco's partner recognized Zorro as the hidalgo Don Diego Vega, then ask him to take over the fighting legion as his alter-ego Zorro.

Zorro's Fighting Legion

1939

King of the Mounties poster
8.0

King of the Candian riding police is up against Japs and Nazis who are about to invade Canada. They just want to clear the way with a new futuristic plane called "The Falcon" first, but that's not gonna happen if Kig has his way.

King of the Mounties

1942

The Lone Ranger Rides Again poster
7.3

Homesteaders are moving into the valley settled many years ago by rancher Craig Dolan. He wants to keep them out by legal means but his nephew Bart brings in outlaws to drive them out. The Lone Ranger is on hand to help the homesteaders battle Bart's men as he overcomes traps, ambushes, burning buildings and other obstacles in his attempt to bring peace to the valley.

The Lone Ranger Rides Again

1939

Hi-Yo Silver poster
7.0

Edited version of the 1938 Republic serial "The Lone Ranger."

Hi-Yo Silver

1940

Mysterious Doctor Satan poster
6.0

A mad scientist named Dr. Satan plots to steal key pieces of technology to enable him to build an army of robots based on his prototype to conquer America. The only one standing in his way is Bob Wayne, who fights Satan as the enigmatic Copperhead. Mysterious Doctor Satan is a 1940 film serial named after its chief villain. Doctor Satan's main opponent is the masked mystery man, "The Copperhead", whose secret identity is Bob Wayne, a man searching for justice and revenge on Satan for the death of his step-father. The serial charts the conflict between the two as Bob Wayne pursues Doctor Satan, while the latter completes his plans for world domination.

Mysterious Doctor Satan

1940

Perils of Nyoka poster
8.0

Professor Campbell's expedition into the hills of Libya obtains a papyrus which might reveal the hiding place of the Golden Tablets of Hippocrates, containing lost medical secrets. Also in the region is intrepid Nyoka Gordon, still seeking her father, lost on a previous expedition. She alone can translate the papyrus, which directs our heroes through deadly perils (including the Tunnel of Bubbling Death) into the land of the Tuaregs. Opposing them are Vultura, Queen of the Desert, and her Arab ally Cassib, both greedy for the treasure...

Perils of Nyoka

1942

Jungle Girl poster
6.8

Dr. John Meredith has been driven from civilization by the criminal activities of his twin brother Bradley Meredith. With his infant daughter, he settles in the African jungle, where his ability to cure the native ills has resulted in his virtual control of the Masamba tribes, who possess vast diamond mines coveted by a gang of crooks.

Jungle Girl

1941

Black Hills Ambush poster
7.0

U.S. Marshal Rocky Lane arrives to help his friend Nugget whose shipments are being robbed. Learning the gang only goes for incoming shipments, he figures they are repacking the loot and having Nugget ship it out. So he hijacks the next outgoing shipment finding a box labeled tools contains gold bars. Then posing as an outlaw he makes a deal with the gang hoping to round them up. But the boss learns he is a Marshal and he is made a prisoner.

Black Hills Ambush

1952

Drums of Fu Manchu poster
6.3

The nefarious Dr. Fu Manchu searches for the keys to the tomb of Genghis Khan, in order to fulfill a prophecy that will enable him to conquer the world. His nemesi, Dr. Nayland Smith and his associates fight to keep the evil doctor from getting his hands on the keys. In 1943 the serial was edited together into a feature movie also called Drums of Fu Manchu.

Drums of Fu Manchu

1940

Zombies of the Stratosphere poster
5.0

Martians come to Earth to build an H-bomb strong enough to blast Earth out of orbit so that Mars can be moved into its place in closer proximity to the sun. Super-scientist Larry Martin, inventor of the first stratospheric-flight spaceship as well as a jet-powered personal flying suit with helmet, is called upon by the government to investigate ramped-up UFO reports occasioned by the Martians' spaceships. The Martians, meanwhile, led by Marex, engage a renegade earth scientist and a gaggle of gangsters to help them steal supplies, operate a menacing robot, and build their bomb. This movie serial in 12 chapters was originally planned as a sequel to "Radar Men From The Moon" with Commando Cody as the hero but at the last moment the main characters' names were changed and all other references to that serial removed from the script.

Zombies of the Stratosphere

1952

No artwork available
6.0

America mining engineers seek to gain the mining rights for uranium from the African chief & his tribe who control the area they want to mine. Secret foreign forces, who will stop at nothing, try to undermine the chief by winning over his witch doctor who wants to lead his people and gain great wealth.

U-238 and the Witch Doctor

1966

The Invisible Monster poster
4.7

Man-woman team of investigators uncover a gang whose mad scientist leader has developed an invisibility chemical and plans to build a mercenary army of invisible men.

The Invisible Monster

1950

Daredevils of the Red Circle poster
4.8

Escaped Prisoner 39013 impersonates the rich and influential Horace Granville, allowing him to create a variety of disasters. Fortunately, he is thwarted repeatedly by three daring circus daredevils.

Daredevils of the Red Circle

1939

G-men vs. the Black Dragon poster
6.7

Japanese spies attempt to subvert America's war effort; G-Men attempt to thwart their plot.

G-men vs. the Black Dragon

1943

Manhunt of Mystery Island poster
5.5

Claire Forrest seeks her kidnapped scientist father, hidden somewhere on Mystery Island. He is held and forced to work on diabolical inventions by Captain Mephisto, a costumed villain.

Manhunt of Mystery Island

1945

Missile Monsters poster
4.0

A warlord from Mars recruits an Earth industrialist with a Nazi past to manufacture weapons by means of which Mars can take over the Earth. Feature version of the 1951 movie serial "Flying Disc Man from Mars".

Missile Monsters

1958

Desperadoes of the West poster
5.9

A group of ranchers, led by Colonel Arnold and Ward Gordon, are drilling an oil well but getting fierce opposition from an unknown gang of outlaws. Eastern promoter J.B."Dude" Dawson, is behind the gang as he is out to prevent the co-op members from striking oil before their lease expires, so he can secure the property for his company. When Ward, with the help of Arnold and his daughter Sally, arranges for a new driller to be brought in, the replacement man is killed and one of Dawson's men takes his place.

Desperadoes of the West

1950