2021
Hollywood in the Atomic Age: Monsters! Martians! Mad Scientists! as Self (archive footage)2018
The Gilligan Manifesto as Himself2001
Surviving Gilligan's Island: The Incredibly True Story of the Longest Three Hour Tour in History as Himself1996
E! True Hollywood Story as Not available1994
Space Ghost Coast to Coast as Self1988
Monsters as Not available1988
Roseanne as Not available1988
Blue Movies as Mr. Martin1986
ALF as Professor Roy Hinkley1985
MacGyver as Oslow1983
Off the Wall as Mr. Whitby1982
Fame as Not available1982
Newhart as Not available1982
Gilligan's Planet as Roy "The Professor" Hinkley (voice)1981
Dynasty as Not available1981
The Harlem Globetrotters on Gilligan's Island as Professor1980
Bosom Buddies as Not available1980
Beyond Westworld as Patrick1980
The Great Skycopter Rescue as Professor Benson1979
Knots Landing as Tim Murphy1979
The Rebels as Not available1979
The Castaways on Gilligan's Island as Professor1978
The Ghost of Flight 401 as Loft1978
Rescue from Gilligan's Island as Professor Roy Hinkley, Jr.1978
The Bastard as Col. James Barrett1978
Police Story: No Margin for Error as Captain1977
Lou Grant as Not available1977
Code R as Ike1977
MacArthur as Admiral King1977
Hitch Hike to Hell as Captain J.W. Shaw1977
Nowhere to Hide as Charles Montague1976
Rich Man, Poor Man - Book II as Detective1976
Collision Course: Truman vs. MacArthur as Gen. George Stratemeyer1975
The Jeffersons as Not available1975
Wonder Woman as Colonel1975
Three Days of the Condor as Intelligence Officer at Briefing (uncredited)1975
You Lie So Deep, My Love as The Foreman1975
Adventures of the Queen as Forbes1974
The New Adventures of Gilligan as Professor Roy Hinkley (voice)1974
The Man from Independence as Linaver1974
Aloha Means Goodbye as Dr. Frank Franklin1973
Police Story as Not available1973
Hawkins as District Attorney1973
The Horror at 37,000 Feet as Jim Hawley1973
Beg, Borrow...or Steal as Alex Langley1972
ABC Afterschool Special as Mr. Calder1971
Cannon as Not available1971
Owen Marshall: Counselor at Law as Asst D.A. Grant1971
Owen Marshall: Counselor at Law as Asst. D.A. Grant1971
Owen Marshall: Counselor at Law as Brenton Grant1971
Owen Marshall: Counselor at Law as Asst. D.A. Brenton Grant1971
Owen Marshall: Counselor at Law as Prosecutor1971
McMillan & Wife as Carl Jensen1971
Vanished as Clyde Morehouse1970
The Movie Murderer as Cliff Thomas1969
Cry for Poor Wally as Not available1967
Ironside as Martin Lucas1967
Mannix as Not available1967
The Invaders as James Bernard1966
That Girl as Not available1966
Felony Squad as Not available1965
The F.B.I. as Phillip Graham1965
The F.B.I. as Jim Kellogg1965
The F.B.I. as Dr. McGregor1965
The Greatest Story Ever Told as Scribe1964
Gilligan's Island as Roy "The Professor" Hinkley1964
A Distant Trumpet as Captain Brinker1963
The Outer Limits as Major Benedict1963
The Great Adventure as Narrator (voice)1963
The Great Adventure as Self - Narrator1963
The Greatest Show on Earth as Dr. Arnold Andrews1963
The Dakotas as Not available1963
Temple Houston as Not available1962
General Electric True as Not available1961
Ben Casey as Not available1961
Ripcord as Not available1960
Route 66 as Bob Keel1960
Thriller as Adam Talmadge1959
The Twilight Zone as Prof. Manion1959
The Twilight Zone as Pete Corrigan1959
Adventures in Paradise as Bowman1959
Hawaiian Eye as Not available1959
The DuPont Show with June Allyson as Hugh1959
The DuPont Show with June Allyson as Tom Richards1959
Rawhide as Burt Harvey1959
The Detectives as Lee1959
The Deputy as Albee Beckett1959
Black Saddle as Marshal Gib Scott1959
Riverboat as Darius1958
Lawman as Not available1958
77 Sunset Strip as Not available1958
Steve Canyon as Maj. Pitch Hammer1958
Jefferson Drum as The Sundown Kid1958
Badman's Country as Sundance1958
The Saga of Hemp Brown as Hook1958
The Space Children as Joe Gamble1957
Wagon Train as Craig Manson1957
Tales of Wells Fargo as William Dodd1957
Attack of the Crab Monsters as Hank Chapman1957
Rock All Night as Jigger1957
Courage of Black Beauty as Ben Farraday1955
Alfred Hitchcock Presents as Turk1955
Gunsmoke as Stanger1955
Gunsmoke as Harry Webb1955
Gunsmoke as Diggs1955
Gunsmoke as Link Parrin1955
Kings Row as Not available1955
This Island Earth as Steve Carlson1955
Many Rivers to Cross as Banks1955
Strange Lady in Town as Shadduck1955
Ma and Pa Kettle at Waikiki as Eddie Nelson1954
Lassie as Not available1954
The Adventures of Rin Tin Tin as Sgt. Stan Powers1954
Ride Clear of Diablo as Jed Ringer1954
Black Tuesday as Howard Sloane1954
Johnny Dark as Emory1953
You Are There as Not available1953
City Detective as Not available1953
Law and Order as Jimmy Johnson1953
It Came from Outer Space as George1953
Tumbleweed as Lam Blandon1953
Column South as Biddle1953
Seminole as Lt. Hamilton1953
The Stand at Apache River as Greiner1952
Adventures of Superman as Not available1952
Adventures of Superman as Man on Phone in Montage (archive footage)1952
Cavalcade of America as Karl Nader1952
Cavalcade of America as Dan Marshall1952
Rancho Notorious as Chuck-A-Luck Wheel Spinner (uncredited)1952
The Turning Point as Herman (uncredited)1952
Loan Shark as Charlie Thompson1952
For Men Only as Ky WalkerNaN
Stevie and Zoya as Narrator1952
Back at the Front as Johnny Redondo - Smuggler1951
Hallmark Hall of Fame as Lefty1950
Lux Video Theatre as Carter1950
Lux Video Theatre as Lennigan1949
The Lone Ranger as Tom Levering