Leo John Genn (9 August 1905 – 26 January 1978) was an English actor and barrister. Signified by his relaxed charm and smooth, "black velvet" voice, he had a lengthy career in theatre, film, television, and radio; often playing aristocratic or gentlemanly, sophisticate roles.
Born to a Jewish family in London, Genn was educated as a lawyer and was a practicing barrister until after World War II, in which he served in the Royal Artillery as a Lieutenant-Colonel. He began his acting career at The Old Vic and made his film debut in 1935, starring in a total of 85 screen roles until his death in 1978. For his portrayal of Petronius in the 1951 Hollywood epic Quo Vadis, he received an Oscar nomination for Best Supporting Actor.
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Known For
Quo Vadis
(1951)
Petronius
Moby Dick
(1956)
Starbuck
The Longest Day
(1962)
Brig. Gen. Edwin P. Parker Jr.
Khartoum
(1966)
Narrator (voice)
Pygmalion
(1939)
Prince (uncredited)
55 Days at Peking
(1963)
Gen. Jung-Lu
Caesar and Cleopatra
(1945)
Bel Affris
Beyond Mombasa
(1956)
Ralph Hoyt
Plymouth Adventure
(1952)
William Bradford
The MacKintosh Man
(1973)
Rollins (uncredited)
The Snake Pit
(1948)
Doctor Mark H. Van Kensdelaerik (Dr. "Kik")
Endless Night
(1972)
Psychiatrist (uncredited)
Contraband
(1940)
First Brother Grimm
The Silent One
(1973)
Chief of M.I.5
Frightmare
(1974)
Dr. Lytell
Ten Little Indians
(1965)
General Mandrake
Full Filmography
Acting
The Dream Doctor
(1936)
Husband
Accused
(1936)
Man
When Thief Meets Thief
(1937)
Prosecuting Counsel
The Rat
(1937)
Defending Counsel
Kate Plus Ten
(1938)
Dr. Gurdon
Pygmalion
(1939)
Prince (uncredited)
Ten Days in Paris
(1940)
Lanson
Girl in the News
(1940)
Prosecuting Counsel (Uncredited)
Contraband
(1940)
First Brother Grimm
French Communique
(1940)
Commentator
The Young Mr. Pitt
(1942)
Danton (uncredited)
The Bells Go Down
(1943)
Off-Screen Narrator (uncredited)
Attack: The Battle for New Britain
(1944)
Narrator (voice)
Henry V
(1944)
The Constable of France
The Return of the Vikings
(1944)
Narrator (voice)
The Way Ahead
(1944)
Captain Edwards
Tunisian Victory
(1944)
Narrator (voice)
Caesar and Cleopatra
(1945)
Bel Affris
Famous Scenes from Shakespeare No. I: Julius Caesar - The Forum Scene - Act III. Scene 2
(1945)
Marcus Antonius
Green for Danger
(1946)
Mr. Eden
Theirs Is the Glory
(1946)
Narrator (uncredited)
Mourning Becomes Electra
(1947)
Adam Brant
The Snake Pit
(1948)
Doctor Mark H. Van Kensdelaerik (Dr. "Kik")
The Velvet Touch
(1948)
Michael Morrell
London Belongs to Me
(1948)
Narrator (uncredited)
The Undefeated
(1950)
Joe Anderson (voice)
I Went Back
(1950)
Narrator
The Miniver Story
(1950)
Steve Brunswick
The Wooden Horse
(1950)
Peter Howard
No Place for Jennifer
(1950)
William Parry
Quo Vadis
(1951)
Petronius
24 Hours of a Woman's Life
(1952)
Robert Sterling
Plymouth Adventure
(1952)
William Bradford
The Magic Box
(1952)
Maida Vale Doctor
The Girls of Pleasure Island
(1953)
Roger Halyard
Personal Affair
(1953)
Stephen Barlow
The Red Beret
(1953)
Major J. Snow
Elizabeth Is Queen
(1953)
Narrator
The Green Scarf
(1954)
Rodelec
Blackmail
(1955)
Lionel Kendall
Lady Chatterley's Lover
(1955)
Sir Clifford Chatterley
Beyond Mombasa
(1956)
Ralph Hoyt
Moby Dick
(1956)
Starbuck
Tank Force!
(1958)
Sgt. Kendall
I Accuse!
(1958)
Maj. Picquart
The Steel Bayonet
(1958)
Maj. Gerrard
The Immortal Land
(1958)
Too Hot to Handle
(1960)
Johnny Solo
Escape by Night
(1960)
Michael Pemberton
Mrs. Miniver
(1960)
Clem Miniver
Life of Adolf Hitler
(1961)
Narrator
The Longest Day
(1962)
Brig. Gen. Edwin P. Parker Jr.
55 Days at Peking
(1963)
Gen. Jung-Lu
The Delhi Way
(1964)
Narrator (voice)
The Death Ray of Dr. Mabuse
(1964)
Adm. Quency
Ten Little Indians
(1965)
General Mandrake
Circus of Fear
(1966)
Elliott
Khartoum
(1966)
Narrator (voice)
The Strange Case of Dr. Jekyll and Mr. Hyde
(1968)
Dr. Lanyon
Connecting Rooms
(1970)
Dr. Norman
The Bloody Judge
(1970)
Lord Wessex
Die Screaming Marianne
(1971)
The Judge
A Lizard in a Woman's Skin
(1971)
Edmond Brighton
Endless Night
(1972)
Psychiatrist (uncredited)
The Silent One
(1973)
Chief of M.I.5
The MacKintosh Man
(1973)
Rollins (uncredited)
Frightmare
(1974)
Dr. Lytell
You Are Free, Dr. Korczak
(1975)
Dr. Janusz Korczak