A heavily built man with a striking double-chin and a deep voice, Sullivan made his acting debut at the
Old Vic at age 18 in
Shakespeare's
Richard III. He had considerable theatrical experience before he appeared in his first film in 1932,
The Missing Rembrandt, as a German villain opposite
Arthur Wontner as
Sherlock Holmes. Among his film roles are
Mr Bumble in
Oliver Twist (1948) and Phil Nosseross in the
film noir Night and the City (1950). Sullivan also played the part of the lawyer Jaggers in two versions of
Charles Dickens's
Great Expectations - in
1934 and
1946. He appeared in a fourth Dickens film, the 1935
Universal Pictures version of
The Mystery of Edwin Drood, in which he played Crisparkle. He was featured in
The Citadel (1938), starring
Robert Donat, and a decade later he played the role of
Pierre Cauchon in the
technicolor version of
Joan of Arc (1948), starring
Ingrid Bergman. In 1938 he starred in a revival of the
Stokes brothers' play
Oscar Wilde at London's
Arts Theatre. He played the Attorney-General prosecuting the case defended by Robert Donat as barrister Sir Robert Morton, in the first film version of
The Winslow Boy (1948). Sullivan also acted in light comedies, including
My Favorite Spy (1951), starring
Bob Hope and
Hedy Lamarr, in which he played an enemy agent, and the comedy
Fiddlers Three (1944), portraying
Nero. He also played the role of
Pothinus in the film version of
George Bernard Shaw's
Caesar and Cleopatra (1945). The film was directed by
Gabriel Pascal, and was the last film personally supervised by Shaw himself. Sullivan reprised the role in a stage revival of the play. On television, Sullivan starred in "The Man Who Would Be King", the 17 October 1950, episode of
Suspense. Sullivan, who became a naturalised American citizen on 27 December 1954, won a
Tony Award in 1955 for the
Agatha Christie play
Witness for the Prosecution. Earlier, he had played Christie's detective
Hercule Poirot in the plays
Black Coffee (1930) and
Peril at End House (1940), and in the TV play ''
Wasp's Nest'' (1937). == Personal life and death ==