Cast & creator
Gerald Harper
Best known for The Avengers, No Hiding Place, The Champions
Gerald Harper (15 February 1931 – 2 July 2025) was an English actor, best known for his work on television, having played the title roles in Adam Adamant Lives! (1966–67) and Hadleigh (1969–76). He then returned to his main love, the theatre. Harper was married to actress Jane Downs from 1957 until they divorced in 1975. In 2001, when he was in his early seventies, he began a relationship with 30-year-old actress Sarah Alexander; the relationship ended when she left him for actor Peter Serafinowicz in 2002. Harper died at the age of 94 on 2 July 2025.
Also known as: ジェラルド・ハーパー, Jerarudo Hāpā
17
film credits
17
television credits
34
1955–2008 · acting roles
7.0
average across scored titles
Signature credits
Known for
Across film & television
Filmography (34)
Showing 34 of 34 credits
The Avengers
Colonel Corf
1961
No Hiding Place
1959
The Champions
Croft
1968
Public Eye
Raymond Franks
1965
Thriller
Greg Miles
1973
Gideon's Way
Deputy Commander Rae Cox
1965
Out of This World
Colonel Tanner
1962
The Protectors
The Honourable Arthur Keir
1964
Cilla
Self
1968
Hadleigh
James Hadleigh
1969
Adam Adamant Lives!
Adam Adamant
1966
A Night to Remember
3rd Officer - Carpathia
1958Noel's Telly Years
Self
1996
The Caesars
Lucius Vitellius
1968
Gazette
James Hadleigh
1968
The Dam Busters
RAF Officer (uncredited)
1955
The Shoes of the Fisherman
Brian
1968
The Lady Vanishes
Todhunter
1979
A Man Called Harry Brent
DI Alan Milton
1965
The Admirable Crichton
Ernest
1957
The League of Gentlemen
Captain Saunders
1960
A Game of Murder
Det. Insp. Jack Kerry
1966
Verity Lambert: Drama Queen
2008
Tiger in the Smoke
Walter "Duds" Morrison
1956
The Craig Ferguson Story
Stage Doorman
1990
The Punch and Judy Man
1st Drunk
1963
Tunes of Glory
Major Hugo Macmillan
1960
Wonderful Life
Sheik / Scotsman / Harold
1964
The Young Ones
Watts
1961The Joe Baker Show
1965
Stars in Your Eyes
Dicky
1956If It's a Man – Hang Up!
Greg Miles
1975
Strangler's Web
Inspector Murray
1965
Princely Toys: One Man's Private Kingdom
narrator
1976