Demelza O'Sullivan

Acting

Demelza O'Sullivan

Known for

Acting

Credits

8 titles

Known for

Citadel poster
6.9

What if you lost your memory? What if a spy didn't know they were a spy? Years ago, the top agents of Citadel, Mason Kane and Nadia Sinh, had their minds wiped. But, they're called back to action as sinister forces emerge from the past. With the help of spymaster Bernard Orlick, these former lovers must remember the past to save the future.

Citadel

2023

The Girlfriend poster
7.2

Laura has it all: a glittering career, a loving husband, and her precious son, Daniel. But her perfect life unravels when Daniel brings home Cherry, a girlfriend who changes everything. After a tense introduction, Laura becomes convinced Cherry is hiding something. Is she a manipulative social climber, or is Laura just paranoid? The truth is a matter of perspective.

The Girlfriend

2025

Hostage poster
6.8

When the British prime minister's husband is kidnapped and the French president starts receiving threats, both leaders must face an impossible choice.

Hostage

2025

DI Ray poster
6.9

DI Ray is set in Birmingham and follows Leicester-born Rachita Ray, a police officer who takes on a case that forces her to confront a lifelong personal conflict between her British identity and her South Asian heritage.

DI Ray

2022

Fear the Invisible Man poster
6.5

A young British widow shelters an old medical school colleague, a man who has somehow turned himself invisible. As his isolation grows and his sanity frays, he schemes to create a reign of wanton murder and terror across the city.

Fear the Invisible Man

2023

Baby on Board poster
NR

A haunting and emotional encounter between a police officer and a young father in the dead of night.

Baby on Board

2023

Film credits

Series credits