Credits

• 2024 · Elizabeth Taylor: The Lost Tapes as Self (archive footage)
• 2024 · Planet of the Apes: A Milestone of Science Fiction as Self (archive footage)
• 2001 · Cleopatra: The Film That Changed Hollywood as Self (archive footage)
• 2001 · The Return of Captain Sinbad as Narrator
• 2000 · Backstory: 'How Green Was My Valley' as Self (archive footage)
• 2000 · Mary Pickford: A Life on Film as Self
• 1999 · Linda Darnell: Hollywood's Fallen Angel as
• 1999 · Keepers of the Frame as Himself
• 1998 · A Bug's Life as Mr. Soil (voice)
• 1998 · Loss of Faith as Henry Stokes
• 1998 · Godzilla: The Series as
• 1998 · Beyond Titanic as Self
• 1998 · Behind the Planet of the Apes as Self - Host
• 1998 · Something to Believe In as Gambler
• 1998 · Louise Brooks: Looking for Lulu as Himself - Actor / Friend
• 1998 · Star Power: The Creation Of United Artists as Narrator (voice)
• 1997 · Vincent Price: The Versatile Villain as Self
• 1997 · The New Batman Adventures as Mad Hatter (voice)
• 1997 · The New Batman Adventures as The Mad Hatter / Jervis Tetch (voice)
• 1997 · Obsessed with Vertigo: New Life for Hitchcock's Masterpiece as Narrator (Voice)
• 1997 · The Second Jungle Book: Mowgli & Baloo as King Murphy
• 1997 · Barbara Stanwyck: Straight Down The Line as Self
• 1997 · Audrey Hepburn: The Fairest Lady as Self
• 1997 · Henry Fonda: Hollywood's Quiet Hero as Self
• 1997 · Twentieth Century Fox: The First 50 Years as Self
• 1997 · Walter Matthau: Diamond in the Rough as Self
• 1996 · Unlikely Angel as Saint Peter
• 1996 · Superman: The Animated Series as Mad Hatter (voice)
• 1996 · It's My Party as Damian Knowles
• 1996 · Dead Man's Island as Trevor Dunnaway
• 1996 · Star Hunter as Riecher
• 1995 · Last Summer in the Hamptons as Thomas
• 1995 · The Grass Harp as Amos Legrand
• 1995 · Pinky and the Brain as Snowball (voice)
• 1995 · Darryl F. Zanuck: 20th Century Filmmaker as Self
• 1995 · The Alien Within as Dr. Henry Lazarus
• 1994 · Gargoyles as
• 1994 · Biography: Bette Davis — If Looks Could Kill as Self
• 1994 · The Story of Lassie as Self
• 1994 · Angel 4: Undercover as Geoffrey Kagen
• 1994 · Mirror Mirror 2: Raven Dance as Dr. Lasky
• 1994 · Hart to Hart: Home Is Where the Hart Is as Jeremy Sennet
• 1994 · Heads as Fibris Drake
• 1994 · Burke's Law as Maurice Gillette
• 1994 · Meet Me in St. Louis: The Making of an American Classic as Narrator (voice)
• 1993 · SWAT Kats: The Radical Squadron as
• 1993 · The Evil Inside Me as Pauly
• 1992 · The Sands of Time as Alan Tucker
• 1992 · The Magical World of Chuck Jones as Self
• 1992 · Batman: The Animated Series as Mad Hatter (voice)
• 1992 · MGM: When the Lion Roars as
• 1992 · Double Trouble as Phillip Chamberlin
• 1992 · The Naked Target as Ernest Peabody
• 1991 · Timmy's Gift: A Precious Moments Christmas as Narrator (voice)
• 1991 · The Legend of Prince Valiant as
• 1991 · Going Under as Secretary Neighbor
• 1991 · Deadly Game as Dr. Aaron
• 1991 · Crazy About the Movies: Dennis Hopper as Self
• 1991 · An Inconvenient Woman as Cyril Rathbone
• 1991 · Earth Angel as Mr. Tatum
• 1991 · The Pirates of Dark Water as Niddler (voice)
• 1990 · Shakma as Sorenson
• 1990 · The Color of Evening as Henry Seaton
• 1990 · Dream On as Bob Jeffers
• 1989 · Harold Lloyd: The Third Genius as Self
• 1989 · The Big Picture as Judge
• 1989 · Carmilla as Inspector Amos
• 1989 · Camp Candy as
• 1989 · The New Lassie as
• 1989 · Nightmare Classics as Inspector Amos
• 1989 · Cutting Class as Mr. Dante
• 1989 · Around the World in 80 Days as McBaines
• 1989 · Quantum Leap as Edward St. John V
• 1989 · Hollywood on Horses as Self
• 1988 · Doin' Time on Planet Earth as Minister
• 1988 · Remo Williams: The Prophecy as
• 1988 · Fright Night Part 2 as Peter Vincent
• 1987 · Overboard as Andrew
• 1987 · Dead of Winter as Mr. Murray
• 1986 · The Wizard as
• 1986 · Bridges to Cross as
• 1986 · GoBots: Battle of the Rock Lords as Nuggit (voice)
• 1986 · Matlock as
• 1985 · Alice in Wonderland as The March Hare
• 1985 · Alice in Wonderland as March Hare
• 1985 · Fright Night as Peter Vincent
• 1985 · Hollywood Wives as Jason Swandle
• 1984 · Murder, She Wrote as Dr. Alger Kenyon, PHD
• 1984 · Murder, She Wrote as Gordon Fairchild
• 1984 · The Zany Adventures of Robin Hood as Prince John
• 1983 · The Wind in the Willows as Ratty (voice)
• 1983 · Rapunzel as Narrator
• 1983 · This Girl For Hire as Manfred Hayes
• 1982 · Tales of the Gold Monkey as "Bon Chance" Louie
• 1982 · Faerie Tale Theatre as Narrator (voice)
• 1982 · Hotel as
• 1982 · Class of 1984 as Terry Corrigan
• 1982 · Mae West as Rene Valentine
• 1982 · Evil Under the Sun as Rex Brewster
• 1982 · Hollywood’s Children as Self (Narrator)
• 1982 · Twilight Theatre as Self - Host
• 1982 · The Making of Agatha Christie's 'Evil Under the Sun' as Self / Rex Brewster
• 1981 · The Million Dollar Face as Derek Kenyon
• 1981 · Charlie Chan and the Curse of the Dragon Queen as Gillespie
• 1980 · Farewell to the Planet of the Apes as Galen
• 1980 · Life, Liberty and Pursuit on the Planet of the Apes as Galen
• 1980 · Treachery and Greed on the Planet of the Apes as Galen
• 1980 · The Forgotten City of the Planet of the Apes as Galen
• 1980 · Back to the Planet of the Apes as Galen
• 1980 · The Return of the King as Samwise Gamgee (voice)
• 1980 · The Memory of Eva Ryker as MacFarland
• 1980 · Here's Boomer as
• 1980 · The Martian Chronicles as Father Stone
• 1979 · Scavenger Hunt as Jenkins
• 1979 · The Black Hole as V.I.N.CENT. (voice) (uncredited)
• 1979 · Trapper John, M.D. as
• 1979 · Hart to Hart as Dr. Peterson
• 1979 · Buck Rogers in the 25th Century as Governor Saroyan
• 1979 · Hart to Hart as Dr. Peterson
• 1979 · Sweepstakes as
• 1979 · Sitcom: The Adventures of Garry Marshall as Chuck the Robot (voice)
• 1978 · The Immigrants as Mark Levy
• 1978 · Flying High as
• 1978 · Circle of Iron as White Robe
• 1978 · The Cat from Outer Space as Mr. Stallwood
• 1978 · Rabbit Test as Gypsy Grandmother / Dr. D & C Fishbine
• 1978 · Laserblast as Doctor Mellon
• 1978 · The Thief of Baghdad as Hasan
• 1977 · The Love Boat as Fred Beery
• 1977 · Flood! as Mr. Franklin
• 1977 · The Rhinemann Exchange as Bobby Ballard
• 1977 · The Fantastic Journey as Dr. Jonathan Willoway
• 1977 · Sixth and Main as Skateboard
• 1976 · Embryo as Frank Riley
• 1976 · That's Entertainment, Part II as (archive footage)
• 1976 · It's Showtime as Self (archive footage)
• 1976 · Mowgli's Brothers as Mowgli (voice)
• 1975 · Mean Johnny Barrows as Tony Da Vince
• 1975 · Wonder Woman as Henry Roberts
• 1975 · Ellery Queen as
• 1975 · The White Seal as Narrator/ White Seal
• 1975 · Funny Lady as Bobby Moore
• 1975 · Elizabeth Taylor: An Intimate Portrait as Self
• 1974 · Police Woman as
• 1974 · Planet of the Apes as Galen
• 1974 · Harry O as
• 1974 · Dirty Mary Crazy Larry as George Stanton (uncredited)
• 1974 · The Elevator as Marvin Ellis
• 1973 · The Snoop Sisters as Lionel Standish
• 1973 · Miracle on 34th Street as Dr. Sawyer
• 1973 · Arnold as Robert
• 1973 · Battle for the Planet of the Apes as Caesar
• 1973 · The Legend of Hell House as Benjamin Franklin Fischer
• 1973 · The American Film Institute Salute to ... as Self
• 1973 · Barnaby Jones as Stanley Lambert
• 1972 · The Life and Times of Judge Roy Bean as Frank Gass
• 1972 · The Poseidon Adventure as Acres
• 1972 · The Rookies as
• 1972 · Conquest of the Planet of the Apes as Caesar
• 1972 · Hollywood: The Dream Factory as Self (archive footage)
• 1972 · Corky as Harassed Salesman
• 1971 · What's a Nice Girl Like You...? as Albert Soames
• 1971 · A Taste of Evil as Dr. Michael Lomas
• 1971 · Bedknobs and Broomsticks as Mr. Jelk
• 1971 · Terror in the Sky as Dr. Ralph Baird
• 1971 · Columbo as Roger Stanford
• 1971 · Escape from the Planet of the Apes as Cornelius
• 1971 · Pretty Maids All in a Row as Mr. Proffer
• 1971 · Great Performances as Self
• 1971 · Journey to Murder as Rollo Verdew
• 1970 · Night Gallery as Jeremy Evans
• 1970 · McCloud as
• 1969 · Night Gallery as Jeremy Evans
• 1969 · Love, American Style as Howard
• 1969 · Angel, Angel, Down We Go as Santoro
• 1969 · Midas Run as Wister
• 1969 · Hello Down There as Nate Ashbury
• 1968 · Journey to the Unknown as
• 1968 · The Name of the Game as Philip Saxon
• 1968 · The Name of the Game as Early McCorley
• 1968 · 5 Card Stud as Nick Evers
• 1968 · Planet of the Apes as Cornelius
• 1967 · Cricket on the Hearth as Cricket Crocket (voice)
• 1967 · Saint Joan as Charles, The Dauphin
• 1967 · The Carol Burnett Show as Self - Guest
• 1967 · The Carol Burnett Show as Self - Guest / Various Characters
• 1967 · It! as Arthur Pimm
• 1967 · The Cool Ones as Tony Krum
• 1967 · Ironside as
• 1967 · The Adventures of Bullwhip Griffin as Bullwhip Griffin
• 1967 · The Invaders as Lloyd Lindstrom
• 1966 · The Defector as Agent Adams
• 1966 · Mission: Impossible as
• 1966 · Felony Squad as
• 1966 · Lord Love a Duck as Alan Musgrave
• 1966 · Batman as The Bookworm
• 1965 · Inside Daisy Clover as Walter Baines
• 1965 · That Darn Cat! as Gregory Benson
• 1965 · The Loved One as D.J. Jr.
• 1965 · Run for Your Life as Gyula Bognar
• 1965 · The Third Day as Oliver Parsons
• 1965 · The Greatest Story Ever Told as Matthew
• 1964 · Shock Treatment as Martin Ashley
• 1963 · Kraft Suspense Theatre as Robert 'Professor' Benson
• 1963 · Bob Hope Presents the Chrysler Theatre as Arthur Biddle
• 1963 · The Danny Kaye Show as Self
• 1963 · Arrest and Trial as
• 1963 · Cleopatra as Octavian - Caesar Augustus
• 1963 · The Power and the Glory as Mestizo
• 1962 · The Tonight Show Starring Johnny Carson as Self
• 1962 · The Merv Griffin Show as Self
• 1962 · The Longest Day as Pvt. Morris
• 1962 · The Alfred Hitchcock Hour as George
• 1962 · The Alfred Hitchcock Hour as Gerald Musgrove
• 1961 · Ben Casey as
• 1960 · Midnight Lace as Malcolm
• 1960 · The Subterraneans as Yuri Gilgoric
• 1960 · The Tempest as Ariel
• 1959 · The Twilight Zone as Sam Conrad
• 1958 · Heart of Darkness as Charles Marlow
• 1958 · Naked City as Donnie Benton
• 1958 · The Big Country as Hannassey Watchman (uncredited)
• 1957 · Suspicion as
• 1955 · Matinee Theater as
• 1953 · General Electric Theater as Leprechaun
• 1952 · The Steel Fist as Eric Kardin
• 1951 · Hallmark Hall of Fame as
• 1951 · Hallmark Hall of Fame as Ariel
• 1951 · Hallmark Hall of Fame as The Dauphin
• 1950 · Lux Video Theatre as Pete
• 1950 · Lux Video Theatre as Bellamy Partridge
• 1950 · Big Timber as Jimmy
• 1950 · Everybody's Dancin' as Roddy McDowall
• 1950 · Killer Shark as Ted White
• 1950 · Robert Montgomery Presents as Gerald Forbes
• 1950 · Robert Montgomery Presents as Pip
• 1949 · Black Midnight as Scott Jordan
• 1949 · Tuna Clipper as Alec MacLennan
• 1948 · Kidnapped as David Balfour
• 1948 · Macbeth as Malcolm
• 1948 · The Ed Sullivan Show as Self / Ariel
• 1948 · Rocky as Chris Hammond
• 1946 · Holiday in Mexico as Stanley Owen
• 1945 · Molly and Me as Jimmy Graham
• 1945 · Thunderhead: Son of Flicka as Ken McLaughlin
• 1944 · The Keys of the Kingdom as Francis Chisholm, as a boy
• 1944 · The White Cliffs of Dover as John Ashwood II as a Boy
• 1943 · Lassie Come Home as Joe Carraclough
• 1943 · My Friend Flicka as Ken McLaughlin
• 1942 · The Pied Piper as Ronnie Cavanaugh
• 1942 · On the Sunny Side as Hugh Aylesworth
• 1942 · Son of Fury: The Story of Benjamin Blake as Benjamin - as a Boy
• 1941 · Confirm or Deny as Albert Perkins
• 1941 · How Green Was My Valley as Huw Morgan
• 1941 · This England as Hugo
• 1941 · Man Hunt as Vaner
• 1941 · You Will Remember as Young Bob Slater
• 1940 · Saloon Bar as Boy
• 1940 · Just William as Ginger
• 1940 · His Brother’s Keeper as Boy
• 1939 · Poison Pen as Choirboy
• 1939 · The Outsider as Cured Child
• 1938 · Hey! Hey! USA as Boy
• 1938 · Convict 99 as Jimmy
• 1938 · I See Ice as Boy on train
• 1938 · Murder in the Family as Peter Osborne