Marshall Thompson
- McBain
1991 Mr. Rich
- Dallas: The Early Years
1986 Dr. Ted Johnson
- White Dog
1982 Director
- The Formula
1980 Geologist #1
- Bog
1979 Dr. Brad Wednesday
- Cruise Into Terror
1978 Bennett
- Race for Survival
1978 Story
- The Turning Point
1977 Carter
- That's Entertainment, Part II
1976 (archive footage) (uncredited)
- George
1972 Original Story
- Ride the Tiger
1970
- To the Shores of Hell
1966 Maj. Greg Donahue
- Around the World Under the Sea
1965 Dr. Orin Hillyard
- Clarence, the Cross-Eyed Lion
1965 Story
- Zebra in the Kitchen
1965 Shaving Man
- A Yank in Viet-Nam
1964 Director
- No Man Is an Island
1962 Jonn Sonnenberg
- East of Kilimanjaro
1962 Marsh Connors
- Flight of the Lost Balloon
1961 Dr.Joseph Farady
- First Man into Space
1959 Cmdr. Charles Ernest Prescott
- It! The Terror from Beyond Space
1958 Carruthers
- Fiend Without a Face
1958 Major Jeff Cummings
- The Secret Man
1958 Dr. Cliff Mitchell
- Lure of the Swamp
1957 Simon Lewt
- The Blackwell Story
1957 David
- Down Liberty Road
1957 Mysterious Stranger
- Born to Fight
1956 Man Exiting Airplane (uncredited)
- Crashout
1955 Billy Lang
- Cult of the Cobra
1955 Tom Markel
- To Hell and Back
1955 Johnson
- Good Morning, Miss Dove
1955 Wilfred Banning Pendleton III
- Battle Taxi
1955 2nd Lt. Tim Vernon
- Port of Hell
1954 Marsh Walker
- The Caddy
1953 Bruce Reeber
- My Six Convicts
1952 Blivens Scott
- The Rose Bowl Story
1952 Steve Davis
- The Tall Target
1951 Lance Beaufort
- The Basketball Fix
1951 Johnny Long
- Devil's Doorway
1950 Rod MacDougall
- Dial 1119
1950 Gunther Wyckoff
- Mystery Street
1950 Henry Shanway
- Stars in My Crown
1950 Narrator (adult John Kenyon) (voice)
- Battleground
1949 Jim Layton
- Roseanna McCoy
1949 Tolbert McCoy
- B.F.'s Daughter
1948 The Sailor
- Words and Music
1948 Herbert Fields
- Command Decision
1948 Capt. George Washington Bellpepper Lee
- Homecoming
1948 Staff Sgt. 'Mac' McKeen
- The Romance of Rosy Ridge
1947 Ben Mac Bean
- The Cockeyed Miracle
1946 Jim Griggs
- Bad Bascomb
1946 Jimmy Holden
- The Secret Heart
1946 Brandon Reynolds
- Gallant Bess
1946 Tex Barton
- The Show-Off
1946 Joe Fisher
- The Valley of Decision
1945 Ted Scott
- They Were Expendable
1945 Ens. 'Snake' Gardner
- The Clock
1945 Bill
- Twice Blessed
1945 Jimmy
- Blonde Fever
1944 Freddie Bilson
- The Purple Heart
1944 Morrison (uncredited)
- Reckless Age
1944 Roy Connors
