Acting

2005

as Self / Various Roles (archive sound) (archive footage)

1996

1991

as Baron Wolf von Frankenstein (archive footage)

1986

as Sherlock Holmes (voice)

1985

as Sherlock Holmes (archive footage)

1983

as Carmichael (archive footage)

1979

as (archive footage)

1974

as Basil (archive footage)

1968		Autopsy of a Ghost as Canuto Pérez
1968		The Movie Orgy as Self (archival footage)

1967		Hillbillys in a Haunted House as Gregor
1967		Soldier in Love as Duke of York

1966		The Ghost in the Invisible Bikini as Reginald Ripper
1966		Queen of Blood as Dr. Farraday

1965		Voyage to the Prehistoric Planet as Prof. Hartman, Lunar 7
1965		The Son of Frankenstein as Frankenstein (archive footage)

1964

as John F. Black

1962		Two Before Zero
1962		Tales of Terror as Carmichael ("The Case of M. Valdemar")
1962		The Magic Sword as Lodac
1962		Pontius Pilate as Caiaphas

1961

as Prime Minister Benjamin Disraeli (Lord Beaconsfield)

1959

as Scrooge

1958		The Last Hurrah as Norman Cass Sr.
1958		Cole Porter's Aladdin as Emperor
1958		Hans Brinker and the Silver Skates as Dr. Boekman

1957

as Chief Inquisitor

1956		The Stingiest Man in Town as Ebenezer Scrooge
1956		The Black Sleep as Sir Joel Cadman

1955		The Court Jester as Sir Ravenhurst
1955		We're No Angels as Andre Trochard

1954		A Christmas Carol as Marley's Ghost
1954		The General's Boots as General Lee
1954		Casanova's Big Night as Lucio / Narrator

1949		The Adventures of Ichabod and Mr. Toad as Narrator (segment "The Wind in the Willows")
1949		The Wind in the Willows as Narrator (voice)

1946		Dressed to Kill as Sherlock Holmes
1946		Heartbeat as Professor Aristide
1946		Terror by Night as Sherlock Holmes

1945		Pursuit to Algiers as Sherlock Holmes
1945		The Woman in Green as Sherlock Holmes
1945		The House of Fear as Sherlock Holmes

1944		Frenchman's Creek as Lord Rockingham
1944		The Pearl of Death as Sherlock Holmes
1944		Bathing Beauty as George Adams
1944		The Scarlet Claw as Sherlock Holmes

1943		The Spider Woman as Sherlock Holmes
1943		Crazy House as Sherlock Holmes
1943		Sherlock Holmes Faces Death as Sherlock Holmes
1943		Above Suspicion as Sig von Aschenhausen
1943		Sherlock Holmes in Washington as Sherlock Holmes

1942		Sherlock Holmes and the Secret Weapon as Sherlock Holmes
1942		Hedda Hopper’s Hollywood No. 6 as Himself
1942		Sherlock Holmes and the Voice of Terror as Sherlock Holmes
1942		Crossroads as Henri Sarrou
1942		Fingers at the Window as Cesar Ferrari / Dr. H. Santelle

1941		Paris Calling as Andre Benoit
1941		International Lady as Reggie Oliver
1941		The Black Cat as Montague Hartley

1940		The Mad Doctor as Dr. George Sebastian / Dr. Langamann
1940		The Mark of Zorro as Captain Esteban Pasquale
1940		Rhythm on the River as Oliver Courtney

1939		Tower of London as Richard - Duke of Gloucester
1939		Rio as Paul Reynard
1939		The Adventures of Sherlock Holmes as Sherlock Holmes
1939		The Sun Never Sets as Clive Randolph
1939		The Hound of the Baskervilles as Sherlock Holmes
1939		Son of Frankenstein as Baron Wolf von Frankenstein

1938		Breakdowns of 1938 as Basil (archive footage) (uncredited)
1938		The Dawn Patrol as Maj. Brand
1938		If I Were King as King Louis XI
1938		The Adventures of Robin Hood as Sir Guy of Gisbourne
1938		The Adventures of Marco Polo as Ahmed

1937		Tovarich as Commissar Dimitri Gorotchenko
1937		Make a Wish as Johnny Selden
1937		Confession as Michael Michailow
1937		Love from a Stranger as Gerald Lovell

1936		The Garden of Allah as Count Ferdinand Anteoni
1936		Romeo and Juliet as Tybalt
1936		Private Number as Thomas Wroxton

1935		Captain Blood as Levasseur
1935		A Tale of Two Cities as Marquis St. Evremonde
1935		Kind Lady as Henry Abbott
1935		A Feather in Her Hat as Captain Randolph Courtney
1935		The Last Days of Pompeii as Pontius Pilate
1935		Anna Karenina as Alexei Alexandrovitch Karenin
1935		David Copperfield as Mr. Edward Murdstone

1933		Loyalties as Ferdinand de Levis
1933		One Precious Year as Derek Nagel

1932		After the Ball as Jack Harrowby
1932		A Woman Commands as Capt. Alex Pastitsch

1930		Sin Takes a Holiday as Reginald 'Reggie' Durant
1930		A Lady Surrenders as Carl Vandry
1930		The Lady of Scandal as Edward
1930		The Flirting Widow as Col. Smith
1930		A Notorious Affair as Paul Gherardi
1930		This Mad World as Paul Parisot

1929		The Bishop Murder Case as Philo Vance
1929		The Last of Mrs. Cheyney as Lord Arthur Dilling

1926

as Rizzio

1925

as Antoine

1924		Trouping with Ellen as Tony Winterslip
1924		The Loves of Mary, Queen of Scots as Undetermined Subordinate Role

1923

as Joseph Surface

1921		The Fruitful Vine as Don Cesare Carelli
1921		Innocent as Amadis de Jocelyn