(1970) Beneath the Planet of the Apes

as Brent

(1985) Secret Weapons

as Victor Khudenko

(1982) Butterfly

as Moke Blue

(1969) Marooned

as Clayton Stone

(1981) The Last Shark

as Peter Benton

(1979) Killer Fish

as Paul Diller

(1969) The Valley of Gwangi

as Tuck

(1957) Four Boys and a Gun

as Johnny Doyle

(1980) When Time Ran Out...

as Bob Spangler

(1958) The Mugger

as Eddie Baxter

(1979) Concorde Affair

as Moses Brody

(1977) The Man Inside

as Rush

(1978) The Greek Tycoon

as President James Cassidy

(1963) Miracle of the White Stallions

as Maj. Hoffman

(1976) One of My Wives Is Missing

as Daniel Corban

(1964) Youngblood Hawke

as Youngblood Hawke

(1979) City on Fire

as Jimbo

(1976) The Amazing Dobermans

as Lucky

(1980) Nightkill

as Steve Fulton

(1961) The Outsider

as Pvt. James B. Sorenson

(1981) Jacqueline Bouvier Kennedy

as John Fitzgerald Kennedy

(1970) Night Slaves

as Clay Howard

(1975) The Trial of Chaplain Jensen

as Chaplain Andrew Jensen

(1960) I Passed for White

as Rick Leyton

(1971) Longstreet

as Mike Longstreet

(1978) Good Guys Wear Black

as Conrad Morgan

(2000) Bruce Lee: A Warrior's Journey

as Mike Longstreet (archive footage)

(1983) Great Transport

as John Mason

(1968) Shadow Over Elveron

as Dr. Matthew Tregaskis

(1973) Under the Law: The Hitchhike

as ---

(1978) The Pirate

as Dick Carriage

(1970) Hell Boats

as Lt. Comdr. Jeffords, R.N.V.R.

(1973) Jonathan Livingston Seagull

as Jonathan Livingston Seagull (voice)

(1975) The Dream Makers

as Sammy Stone

(1978) Puzzle

as Harry Scott

(1968) Snow Treasure

as 2nd Lt. H. Kalasch

(1971) The Cat o' Nine Tails

as Carlo Giordani

(1993) La Classe américaine

as Professor Hammond (archive footage)

(1978) Secrets of Three Hungry Wives

as Mark Powers

(1973) The 500 Pound Jerk

as Gil Davenport

(1974) Aloha Means Goodbye

as Dr. Lawrence Maddox

(1969) Trial Run

as Louis Coleman

(1965) The F.B.I.

as Charles Burnett

(1971) Longstreet

as Mike Longstreet

(1948) Studio One

as Brass

(1962) Combat!

as Pfc. Charles Harris

(1953) General Electric Theater

as Bill Taylor

(1959) The Twilight Zone

as Lt. Mueller

(1955) Alfred Hitchcock Presents

as William Tyre

(1961) The Investigators

as Russ Andrews

(1958) Westinghouse Desilu Playhouse

as ---

(1959) Rawhide

as ---

(1954) Father Knows Best

as ---

(1955) The Millionaire

as Tom Doane

(1967) Judd for the Defense

as ---

(1958) The Rifleman

as ---

(1961) Ben Casey

as ---

(1963) Mr. Novak

as John Novak

(1961) Dr. Kildare

as Stan Fisher

(1959) The DuPont Show with June Allyson

as Tom Grover

(1973) Doc Elliot

as Benjamin Elliot

(1972) Ghost Story

as Paul Dover

(1977) Hunter

as ---

(1959) Black Saddle

as Quinn Jackson

(1965) The F.B.I.

as Mitchell Flynn

(1962) The Tonight Show Starring Johnny Carson

as Self

(1963) Bob Hope Presents the Chrysler Theatre

as Larry Martin

(1957) Have Gun, Will Travel

as Tom Nelson

(1983) The Great Transport

as John Mason

(1955) Alfred Hitchcock Presents

as Ben Kendall

(1948) Studio One

as Norstad

(1948) Studio One

as Johnny

(1974) Dinah!

as Self

(1958) Naked City

as Jimmy Halloran

(1961) The Mike Douglas Show

as Self