| A Bug's Life (1998) (AKA "Bugs")As Mr. Soil (voice) | (Not seen) |
| Shakma (1990)As Sorenson | (Not seen) |
| Cutting Class (1989) (AKA "Highschool Murders")As Mr. Dante | (Not seen) |
| Around the World in 80 Days (1989) (AKA "Il giro del mondo in 80 giorni") | (Not seen) |
| Fright Night Part 2 (1988) (AKA "Fright Night Part II")As Peter Vincent | (Not seen) |
| Overboard (1987)As Andrew | (Not seen) |
| Fright Night (1985)As Peter Vincent | (Not seen) |
| Evil Under the Sun (1982)As Rex Brewster | (Not seen) |
| Class of 1984 (1982)As Terry Corrigan | (Not seen) |
| The Return of the King (1980)As Samwise Gamgee | (Not seen) |
| The Black Hole (1979) (AKA "Space Station One")As V.I.N.CENT. (voice) (uncredited) | (Not seen) |
| Circle of Iron (1978) (AKA "The Silent Flute")As White Robe | (Not seen) |
| Laserblast (1978)As Doctor Mellon | (Not seen) |
| That's Entertainment, Part II (1976)As (archive footage) | (Not seen) |
| Funny Lady (1975)As Bobby Moore | (Not seen) |
| Dirty Mary Crazy Larry (1974)As George Stanton (uncredited) | (Not seen) |
| The Legend of Hell House (1973)As Benjamin Franklin Fischer | (Not seen) |
| Battle for the Planet of the Apes (1973)As Caesar | (Not seen) |
| The Life and Times of Judge Roy Bean (1972)As Frank Gass | (Not seen) |
| Conquest of the Planet of the Apes (1972)As Caesar | (Not seen) |
| The Poseidon Adventure (1972)As Acres | (Not seen) |
| Bedknobs and Broomsticks (1971) (AKA "Bedknobs and Broomsticks: 25th Anniversary Special Edition")As Mr. Jelk | (Not seen) |
| Escape from the Planet of the Apes (1971) (AKA "Secret of the Planet of the Apes")As Cornelius | (Not seen) |
| Beneath the Planet of the Apes (1970) (AKA "Planet of the Apes Revisited")As Cornelius (archive footage) (uncredited) | (Not seen) |
| Planet of the Apes (1968) (AKA "Monkey Planet")As Cornelius | (Not seen) |
| It! (1967)As Arthur Pimm | (Not seen) |
| Inside Daisy Clover (1965)As Walter Baines | (Not seen) |
| The Loved One (1965)As D.J.Jr. | (Not seen) |
| The Greatest Story Ever Told (1965) (AKA "George Stevens Presents The Greatest Story Ever Told")As Matthew | (Not seen) |
| That Darn Cat! (1965)As Gregory Benson | (Not seen) |
| Cleopatra (1963)As Octavian - Caesar Augustus | (Not seen) |
| The Longest Day (1962)As Pvt. Morris | (Not seen) |
| Midnight Lace (1960)As Malcolm | (Not seen) |
| Macbeth (1948)As Malcolm | (Not seen) |
| My Friend Flicka (1943)As Ken McLaughlin | (Not seen) |
| Lassie Come Home (1943)As Joe Carraclough | (Not seen) |
| How Green Was My Valley (1941) (AKA "Richard Llewellyn's How Green Was My Valley")As Huw Morgan | (Not seen) |