
An ancient evil threatens Earth. Former UNIT scientist Liz Shaw and assistant Bayliss investigate murders near a psychiatric hospital slated for closure. When Peter Russell saves it, events slip beyond Liz’s control. Doctor Dove and Doctor O’Kane may hide the killer, while a centuries‑old horror haunts the grounds and the secret of Room Zero looms.
Does The Zero Imperative have end credit scenes?
No!
The Zero Imperative does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of The Zero Imperative, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Mark Gatiss
Dr. William Bruffin

Sylvester McCoy
Dr. Colin Dove

Peter Davison
Patient One

Jonathan Rigby
Cummings

Sophie Aldred
Public Relations Officer

Louise Jameson
Patricia Haggard

Colin Baker
Peter Russell

Caroline John
Dr. Elizabeth Shaw

Jon Pertwee
Dr. Jeremiah O'Kane

Linda Lusardi
Louise Bayliss

Alexander Kirk
Orderly

Patricia Merrick
Dr. Julie Gilchrist

Nicola Fulljames
Dr. Beatrice Hearst

David Terence
Daniel O'Kane / Eustace O'Kane

Daniel Mills
Ghostly Child Voice
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