 | Titans of Destruction: The Evolution of Giant Monster Movies (2021) as Self - (archive footage) |
 | From Nashville With Music (1969) as Arnold |
 | How to Steal the World (1968) as Alexander Waverly |
 | The Helicopter Spies (1968) as Alexander Waverly |
 | The Movie Orgy (1968) as Self (archive footage) |
 | The Karate Killers (1967) as Alexander Waverly |
 | The Spy in the Green Hat (1967) as Alexander Waverly |
 | One of Our Spies Is Missing (1966) as Alexander Waverly |
 | One Spy Too Many (1966) as Alexander Waverly |
 | That Funny Feeling (1965) as O'Shea |
 | The Spy with My Face (1965) as Alexander Waverly |
 | The Prize (1963) as Bertil Jacobsson |
 | 1+1: Exploring The Kinsey Reports (1961) as Prof. Logan |
 | The Parent Trap (1961) as Rev. Dr. Mosby |
 | North by Northwest (1959) as Professor |
 | The Swan (1956) as Caesar |
 | Tarantula (1955) as Prof. Gerald Deemer |
 | We're No Angels (1955) as Felix Ducotel |
 | Young Bess (1953) as Mr. Mums |
 | Rogue's March (1953) as Col. Henry Lenbridge |
 | Treasure of the Golden Condor (1953) as Raoul Dondel |
 | The Bad and the Beautiful (1952) as Henry Whitfield |
 | The Snows of Kilimanjaro (1952) as Uncle Bill Swift |
 | The Desert Fox: The Story of Rommel (1951) as Field Marshal Gerd von Rundstedt |
 | Strangers on a Train (1951) as Senator Morton |
 | The First Legion (1951) as Father Rector Paul Duquesne |
 | The Happy Years (1950) as Mr. Hopkins |
 | Father of the Bride (1950) as Mr. Massoula |
 | Enchantment (1948) as Proutie |
 | So Evil My Love (1948) as Jarvis |
 | The Paradine Case (1947) as Sir Joseph |
 | Forever Amber (1947) as Matt Goodgroome |
 | Song of Love (1947) as Professor Wieck |
 | Time Out of Mind (1947) as Capt. Fortune |
 | Spellbound (1945) as Dr. Murchison |
 | The House on 92nd Street (1945) as Col. Hammersohn |
 | Bahama Passage (1941) as Delbridge |
 | Suspicion (1941) as Captain George Melbeck |
 | This Woman Is Mine (1941) as Angus 'Sandy' McKay |
 | Scotland Yard (1941) as Craven |
 | Waterloo Bridge (1940) as Policeman (uncredited) |
 | Charlie Chan's Murder Cruise (1940) as Professor Gordon |
 | Rebecca (1940) as Dr. Baker |
 | Tower of London (1939) as Lord Hastings |
 | City in Darkness (1939) as Louis Santelle |
 | The Private Lives of Elizabeth and Essex (1939) as Sir Edward Coke |
 | Wuthering Heights (1939) as Joseph |
 | Bulldog Drummond's Secret Police (1939) as Henry Seaton |
 | A Christmas Carol (1938) as Marley's Ghost |
 | London by Night (1937) as Correy |
 | Captains Courageous (1937) as Burns (uncredited) |
 | The Casino Murder Case (1935) as Smith (as Leo Carroll) |
 | Murder on a Honeymoon (1935) as Joseph B. Tate |
 | The Right to Live (1935) as Dr. Harvester |
 | Clive of India (1935) as Mr. Manning |
 | Outcast Lady (1934) as Dr. Masters |
 | The Barretts of Wimpole Street (1934) as Dr. Ford-Waterlow |
 | Stamboul Quest (1934) as Kruger, #117 aka Bertram Church (uncredited) |
 | Sadie McKee (1934) as Phelps |
 | Mr. W's Little Game (1934) as George the waiter |
