Acting

1999

as Mr. Stanford

1997

as Mr. Parker (archive footage)

1995		Derby as Lester Corbett
1995		Billy Madison as Brian Madison

1994		A Perfect Stranger as John Henry Phillips
1994		Mysteries of the Ancient World

1993

as Older Arthur Huntington

1992		Mastergate as Folsom Bunting
1992		Happy Hell Night as Henry Collins

1991		Preminger: Anatomy of a Filmmaker as actor (archive footage) (uncredited)
1991		Blood and Concrete as Hank Dick
1991		Perfect Harmony as Mr. Hobbs
1991		Clara as Albert Kroll

1990		Captain America as General Fleming
1990		By Dawn's Early Light as Condor
1990		Child in the Night as Os Winfield
1990		Unclaimed Fortunes II as Host
1990		Kojak: It's Always Something as Wainwright

1988		Dead Heat as Dr. Ernest McNab
1988		Inherit the Wind as E.K. Hornbeck
1988		The Diamond Trap as Chief Walter Vadney

1987

as Craig Duncan

1986

as Chief Harry Shannon

1985		Turk 182! as Det. Kowalski
1985		My Wicked, Wicked Ways: The Legend of Errol Flynn as Dr. Gerrit Koets

1984		The Baron and the Kid as Jack Beamer
1984		The Return of Marcus Welby, M.D. as Dr. David Jennings
1984		The Natural as Gus Sands

1983

as Mr. Parker

1981

as Red

1980		Hangar 18 as Harry Forbes
1980		Waikiki as Capt. McGuire

1979		Love for Rent as Coach John Martin
1979		Ike as Gen. George S. Patton
1979		Donovan's Kid as Timothy Donovan

1978		The Users as Henry Waller
1978		Hot Lead & Cold Feet as Mayor Ragsdale
1978		Zero to Sixty as Michael Nolan

1977

as Stan Buchek

1976		Law and Order as Deputy Chief Brian O'Malley
1976		Crackle of Death as Carl Kolchak
1976		Brinks: The Great Robbery as James McNally
1976		Demon and the Mummy as Carl Kolchak
1976		No Deposit, No Return as Duke

1975

as Pal Kovak

1973		The Six Million Dollar Man as Oliver Spencer
1973		The Night Strangler as Carl Kolchak

1972		43: The Richard Petty Story as Lee Petty
1972		Say Goodbye, Maggie Cole as Dr. Lou Grazzo
1972		Here Comes the Judge as Judge
1972		The Rookies as Sgt. Eddie Ryker
1972		Something Evil as Paul Worden
1972		The Night Stalker as Carl Kolchak
1972		Sam Cade

1971		Mooch Goes to Hollywood as Darren McGavin (uncredited)
1971		The Death of Me Yet as Joe Chalk
1971		Banyon as Lieutenant Pete Cordova
1971		Mrs. Pollifax — Spy as Farrell

1970		Tribes as Drake
1970		Berlin Affair as Paul Killian
1970		The Challengers as Jim McCabe
1970		The Challenge as Jacob Gallery

1969

as David Ross

1968

as Col. Mike Blaiswick

1967

as David Ross

1965		African Gold as Mike Gregory
1965		The Great Sioux Massacre as Captain Frederick William Benton

1964

as Sam Ward

1961

as Fred

1959

as Self

1958

as Pete Harris

1957		Beau James as Charley Hand
1957		The Delicate Delinquent as Mike Damon

1955		The Court-Martial of Billy Mitchell as Capt. Russ Peters
1955		The Man with the Golden Arm as Louie
1955		Summertime as Eddie Yaeger
1955		A Word to the Wives... as George Peters

1951

as Dan

1945		Your Next Job as Balancing hobbyist
1945		She Wouldn't Say Yes as The Kid - Soldier in Hospital (uncredited)
1945		A Song to Remember as Student (uncredited)

Writing

1978

… Screenplay

Directing

1973

… Director