(1982) The Thing

as Garry

(1989) Music Box

as Harry Talbot

(1988) The Unbearable Lightness of Being

as Chief Surgeon

(1992) Housesitter

as George Davis

(1980) Popeye

as The Taxman

(1986) The Best of Times

as Herbert ("The Colonel")

(1994) Trapped in Paradise

as Clifford Anderson

(1983) The Right Stuff

as Lyndon B. Johnson

(1990) The Bonfire of the Vanities

as Mr. McCoy

(1994) Clear and Present Danger

as President Bennett

(1978) Sergeant Matlovich vs. the U.S. Air Force

as Col. Benton

(1974) The Terminal Man

as Dr. Arthur McPherson

(1972) The Great Northfield Minnesota Raid

as Manning

(1968) Rachel, Rachel

as Niall Cameron

(1968) Of Mice and Men

as Slim

(1986) Monster in the Closet

as General Franklin Turnbull

(1993) Love, Cheat & Steal

as Frank Harrington

(1980) HealtH

as Colonel Cody

(1956) The Battle of the River Plate

as Swanston - Lookout, HMS Ajax (uncredited)

(1988) Far North

as Uncle Dane

(1991) The Great Pretender

as Owen Milner

(1970) R.P.M.

as Perry Howard

(1978) The Gift of Love

as William Schuyler

(1969) The File on Devlin

as John Heywood

(1985) Alamo Bay

as Wally

(1986) Houston: The Legend of Texas

as Col. John Allen

(1990) Kaleidoscope

as Arthur Patterson

(1971) The Devil and Miss Sarah

as Appleton

(1979) Strangers: The Story of a Mother and Daughter

as Wally Ball

(1974) A Touch of the Poet

as Jamie Cregan

(1991) Regarding Henry

as Charlie Cameron

(1981) The White Lions

as Vreeland

(1998) The Sleep Room

as ---

(1999) Cookie's Fortune

as Jack Palmer

(1987) Desperado

as Malloy, Nora's Dad

(1992) Majority Rule

as Walter Simms

(1994) Is There Life Out There?

as Grandpa Walter

(1977) Exo-Man

as Wallace Rogers

(1974) Earthquake

as Dr. Harvey Johnson

(1991) Class Action

as Quinn

(1987) When the Time Comes

as Harold

(1991) Babe Ruth

as Jacob Ruppert

(1956) The Battle of the River Plate

as Swanston, Lookout, H.M.S. Ajax (uncredited)

(1975) Forget-Me-Not Lane

as Charles Bisley

(1988) The Bourne Identity

as David Abbott

Roger Williams: Founder Of Rhode Island

as Roger Williams

(1979) Ebony, Ivory and Jade

as Ian Cabot

(1979) Mrs. R's Daughter

as Frank Randell

(1981) Jacqueline Bouvier Kennedy

as Hugh Auchincloss

(1996) The Evening Star

as Hector Scott

(1973) Showdown

as Art Williams

(1983) Who Will Love My Children?

as Dick Thomas

(1978) Tartuffe

as Tartuffe

(1983) Through Naked Eyes

as Patrolman

(1997) A Smile Like Yours

as Dr. Felber

(1979) Promises in the Dark

as Dr. Walter McInerny

(1963) Art, what is it? Why is it?

as Narrator

(1988) Necessary Parties

as Grampa Mills

(1977) Eleanor and Franklin: The White House Years

as Harry Hopkins

(1977) Mary White

as Sir James Barrie

(1974) Rex Harrison Presents Stories of Love

as Fred

(1980) The Long Days of Summer

as Josef Kaplan

(1980) On the Nickel

as Sam

(2001) 61*

as Ford Frick

(1990) A Son's Promise

as Paw Paw

(1982) A House Divided: Denmark Vessey's Rebellion

as Captain Vesey

(1986) License to Kill

as Howard Webster

(1992) Teamster Boss: The Jackie Presser Story

as O'Connell

(1990) Kojak: Flowers For Matty

as Garrett Fitzsimons

(1976) The Call of the Wild

as Simpson

(1986) L.A. Law

as Judge Lawrence O'Neil

(1974) Little House on the Prairie

as ---

(1988) China Beach

as ---

(1968) Hawaii Five-O

as Dr. David Forbes

(1985) The Twilight Zone

as ---

(1955) Gunsmoke

as Joseph Graham

(1969) Room 222

as ---

(2005) Law & Order: Trial by Jury

as Matthew Sherwood

(1970) Night Gallery

as Uncle George (segment "Pickman's Model")

(1993) Dr. Quinn, Medicine Woman

as Walt Whitman

(1951) Hallmark Hall of Fame

as John Heywood

(1972) The Waltons

as ---

(1967) The High Chaparral

as Henry Simmons

(1968) Lancer

as ---

(1970) The Young Rebels

as ---

(2000) Bull

as Robert 'The Kaiser' Roberts

(1978) The Word

as Henri Aubert

(1977) Code R

as Jack Douglas

(1993) Tales of the City

as Edgar Halcyon

(1988) The Bourne Identity

as David Abbott

(1961) The Defenders

as Dr. Leon Elm

(1961) The Defenders

as Dr. Finch

(1974) The New Land

as ---

(1977) The Fitzpatricks

as ---

(1977) Logan's Run

as Rem

(1999) The West Wing

as Talmidge Cregg

(1959) Bonanza

as Judge MacIntyre

(1974) The Six Million Dollar Man

as Lester Burstyn

(1974) The Six Million Dollar Man

as Dr. Martin Davis

(1966) Mission: Impossible

as Alex Pierson

(1959) Bonanza

as Thatcher

(1978) Dallas

as Brooks Oliver

(1967) Ironside

as Daniel Keyes

(1989) Cross of Fire

as George Oberholtzer

(1973) The Snoop Sisters

as Shriver Danforth

(1971) Columbo

as Sheldon Hays

(1971) Great Performances

as Charles Bisley

(1984) Murder, She Wrote

as Tim Carver

(1958) Naked City

as Brickwell

(1967) Mannix

as Don McGrath

(1967) Ironside

as Hartz