Acting

2017

as Himself

2009

as Winston Churchill

2008

as Self

2007

as Doc

2000

as Self

1998

as Daddy-O

1996

as General Sorenson

1995		Open Season as Billy Patrick
1995		The Point of Betrayal as Ted Kitteridge

1993

as Himself / Narrator / H.G. Welles

1992

as Gen. Willoughby

1991

as Bill King

1986

as Self

1985		Mask of Murder as Supt. Bob McLaine
1985		Marbella as Commander W.P. Anderson
1985		Half Nelson

1984

as Mitch Brenner (archive footage) (uncredited)

1983

as Mr. Payatta

1982		Disney's Halloween Treat as Pongo (voice) (archive footage)
1982		Charles & Diana: A Royal Love Story as Edward Adeane
1982		A Time To Die as Jack Bailey

1981		Jacqueline Bouvier Kennedy as 'Black Jack' Bouvier
1981		Hellinger's Law as Clint Tolliver

1980

as Steve Donegin

1979

as Marian Casey

1977		US Against the World as Self
1977		The Picture Show Man as Palmer

1976

as Christopher Tauling

1975

as Shamus McCoy

1974

as Marko

1973		The Deadly Trackers as Frank Brand
1973		Trader Horn as Trader Horn
1973		The Heroes as Lieutenant Bob Robson
1973		Wayne Train as Self
1973		The Train Robbers as Grady

1972

as Jason Carlyle

1971

as Hank Brackett

1970		Darker Than Amber as Travis McGee
1970		The Man Who Had Power Over Women as Peter Reaney
1970		Zabriskie Point as Lee Allen

1968		The Hell with Heroes as Brynie MacKay
1968		Nobody Runs Forever as Scobie Malone
1968		Dark of the Sun as Curry

1967		Chuka as Chuka
1967		Hotel as Peter McDermott

1966		The Glass Bottom Boat as Bruce Templeton
1966		Every Girl's Dream as Self

1965		Do Not Disturb as Mike Harper
1965		The Liquidator as Brian Ian "Boysie" Oakes
1965		Young Cassidy as John Cassidy

1964		36 Hours as Major Walter Gerber
1964		Fate Is the Hunter as Captain Jack Savage

1963		Sunday in New York as Mike Mitchell
1963		The V.I.P.s as Les Mangrum
1963		A Gathering of Eagles as Col. Hollis Farr
1963		The Birds as Mitch Brenner

1962

as Sir Francis Drake

1961

as Pongo (voice)

1960		Colossus and the Amazon Queen as Pirro
1960		The Time Machine as H. George Wells

1959

as Ross Taford

1958		Separate Tables as Charles
1958		Step Down to Terror as Mike Randall
1958		The Great Gatsby as Nick Carraway

1957

as Garwood B. Jones

1956		Giant as Sir David Karfrey
1956		The Catered Affair as Ralph Halloran
1956		World Without End as Herbert Ellis

1955		Hell on Frisco Bay as John Brodie Evans (as Rodney Taylor)
1955		Top Gun as Lem Sutter
1955		The Virgin Queen as Cpl. Gwilym

1954		Long John Silver as Israel Hands
1954		King of the Coral Sea as Jack Janiero

1951

as George McLeay

Writing

1979

… Screenplay

Production

1967

… Producer