- Build Thy House ( 1920)
- The Invisible Man ( 1933)
- The Clairvoyant ( 1934)
- Crime Without Passion (1934) - Lee Gentry
- The Man Who Reclaimed His Head (1934) - Paul Verin
- The Last Outpost ( 1935)
- The Mystery of Edwin Drood (1935) - John Jasper
- Hearts Divided ( 1936)
- Anthony Adverse (1936) - Marquis Don Luis
- Stolen Holiday ( 1937)
- The Prince and the Pauper (1937) - Earl of Hertford
- They Won't Forget (1937) - Dist. Atty. Andrew J. 'Andy' Griffin
- White Banners ( 1938)
- Gold Is Where You Find It (1938) - Colonel Christopher 'Chris' Ferris
- The Adventures of Robin Hood (1938) - Prince John
- Four Daughters (1938) - Adam Lemp
- They Made Me a Criminal ( 1939)
- Juarez (1939) - Car Louis Napoleon III
- Sons of Liberty (1939) - Haym Salomon
- Daughters Courageous (1939) - Jim Masters
- Mr. Smith Goes to Washington (1939) - Sen. Joseph Harrison Paine
- Four Wives (1939) - Adam Lemp
- Saturday's Children ( 1940)
- The Sea Hawk (1940) - Don José Alvarez de Cordoba
- Lady with Red Hair (1940) - David Belasco
- Four Mothers ( 1941)
- Here Comes Mr. Jordan (1941) - Mr. Jordan
- The Wolf Man (1941) - Sir John Talbot
- King's Row ( 1942)
| - Moontide (1942) - Nutsy
- Now, Voyager (1942) - Dr. Jaquith
- Casablanca (1942) - Kapt. Louis Renault
- Forever and a Day ( 1943)
- Phantom of the Opera (1943) - Erique Claudin/The Phantom of the Opera
- Passage to Marseille ( 1944)
- Mr. Skeffington (1944) - Job Skeffington
- Strange Holiday ( 1945)
- This Love of Ours (1945) - Joseph Targel
- Caesar and Cleopatra (1945) - Julije Cezar
- Notorious ( 1946) - Alex Sebastian
- Angel on My Shoulder (1946) - Nick
- Deception ( 1946) - Alexander Hollenius
- The Unsuspected ( 1947)
- The Passionate Friends ( 1949)
- Rope of Sand (1949) - Arthur 'Fred' Martingale
- Song of Surrender (1949) - Elisha Hunt
- The White Tower ( 1950)
- Where Danger Lives (1950) - Frederick Lannington
- Sealed Cargo ( 1951)
- The Man Who Watched the Trains Go By ( 1953)
- Lisbon ( 1956)
- The Pied Piper of Hamelin ({1957) (TV) - Gradonačelnik Hamelin
- This Earth Is Mine ( 1959)
- Shangri-La (1960) (TV) - The High Lama
- The Lost World ( 1960)
- Battle of the Worlds (Il Pianeta degli uomini spent) ( 1961)
- Lawrence of Arabia ( 1962)
- Twilight of Honor ( 1963)
- The Greatest Story Ever Told ( 1965)
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