(1939) Ninotchka

as Count Leon d'Algout

(1979) Being There

as Benjamin Rand

(1962) Billy Budd

as The Dansker, Sailmaker

(1972) The Candidate

as John J. McKay

(1976) The Tenant

as Monsieur Zy

(1932) The Old Dark House

as Penderel

(1981) Ghost Story

as Dr. John Jaffrey

(1963) Hud

as Homer Bannon

(1948) Mr. Blandings Builds His Dream House

as Bill Cole

(1941) A Woman's Face

as Dr. Gustaf Segert

(1980) The Changeling

as Senator Carmichael

(1964) The Americanization of Emily

as Admiral William Jessup

(1933) The Vampire Bat

as Karl Brettschneider

(1941) That Uncertain Feeling

as Larry Baker

(1942) They All Kissed the Bride

as Michael 'Mike' Holmes

(1935) Annie Oakley

as Jeff Hogarth

(1938) That Certain Age

as Vincent Bullitt

(1947) The Guilt of Janet Ames

as Smithfield 'Smitty' Cobb

(1937) Angel

as Anthony 'Tony' Halton

(1937) Captains Courageous

as Frank Burton Cheyne

(1979) The Seduction of Joe Tynan

as Senator Birney

(1940) Third Finger, Left Hand

as Jeff Thompson

(1935) She Married Her Boss

as Richard Barclay

(1936) Theodora Goes Wild

as Michael Grant

(1933) Counsellor at Law

as Roy Darwin

(1965) Rapture

as Frederick Larbaud

(1949) A Woman's Secret

as Luke Jordan

(1970) I Never Sang for My Father

as Tom Garrison

(1972) One Is a Lonely Number

as Joseph Provo

(1935) The People's Enemy

as George R. 'Traps' Stuart

(1977) Twilight's Last Gleaming

as Zachariah Guthrie

(1948) My Own True Love

as Clive Heath

(1941) Our Wife

as Jerome 'Jerry' Marvin

(1941) Two-Faced Woman

as Lawrence 'Larry' Blake

(1947) The Sea of Grass

as Brice Chamberlain

(1931) Tonight or Never

as Jim Fletcher

(1939) Tell No Tales

as Michael Cassidy

(1951) My Forbidden Past

as Paul Beaurevel

(1940) Too Many Husbands

as Henry Lowndes

(1972) Hollywood: The Dream Factory

as Self (archive footage)

(1935) Mary Burns, Fugitive

as Barton Powell

(1932) As You Desire Me

as Count Bruno Varelli

(1936) The Gorgeous Hussy

as John Randolph

(1939) Good Girls Go to Paris

as Ronald Brooke

(1938) The Shining Hour

as Henry Linden

(1938) Arsène Lupin Returns

as Rene Farrand aka Arsene Lupin

(1937) I Met Him in Paris

as George Potter

(1940) He Stayed for Breakfast

as Paul Boliet

(1949) The Great Sinner

as Armand De Glasse

(1964) Advance to the Rear

as Col. Claude Brackenbury

(1938) There's Always a Woman

as William H. Reardon

(1939) The Amazing Mr. Williams

as Kenny Williams

(1931) Prestige

as Capt. Andre Verlaine

(1937) I'll Take Romance

as James Guthrie

(1934) Dangerous Corner

as Charles Stanton

(1938) The Toy Wife

as George Sartoris

(1938) Fast Company

as Joel Sloane

(1936) And So They Were Married

as Stephen Blake

(1951) On the Loose

as Frank Bradley

(1980) Tell Me a Riddle

as David

(1934) Woman in the Dark

as Tony Robson

(1942) We Were Dancing

as Nicholas Prax

(1940) This Thing Called Love

as Tice Collins

(1971) Death Takes a Holiday

as Judge Earl Chapman

(1961) Hollywood: The Selznick Years

as Self (archive footage) (uncredited)

(1970) Hunters Are for Killing

as Keller Floran

(1978) The Making of a President

as ---

(1943) Three Hearts for Julia

as Jeff Seabrook

(1935) The Lone Wolf Returns

as Michael Lanyard

(1974) Murder or Mercy

as Dr. Paul Harelson

(1982) The Hot Touch

as Max Reich

(1977) Intimate Strangers

as Donald's Father

(1967) Hotel

as Warren Trent

(1938) There's That Woman Again

as William 'Bill' Reardon

(1973) The Going Up of David Lev

as Grandfather

(1958) The Plot to Kill Stalin

as Stalin

(1958) Old Man

as Self - Host

(1957) The Greer Case

as Howard Hoagland

(1967) Do Not Go Gentle Into That Good Night

as Peter Schermann

(1977) Portrait of Grandpa Doc

as Grandpa Doc

(1937) Women of Glamour

as Richard 'Dick' Stark

(1968) Companions in Nightmare

as Dr. Lawrence Strelson

(1965) Inherit the Wind

as Henry Drummond

(1932) The Wiser Sex

as David Rolfe

(1965) Once Upon a Tractor

as Martin

(1932) The Broken Wing

as Philip 'Phil' Marvin

(1974) The Death Squad

as Police Captain Earl Kreski

(1967) The Crucible

as Deputy Governor Danforth

(1940) Cavalcade of the Academy Awards

as Self

(1976) That's Entertainment, Part II

as (archive footage)

(1939) From the Ends of the Earth

as Self

(1990) Myrna Loy: So Nice to Come Home To

as (archive footage)

(1988) The Making of a Legend: Gone with the Wind

as Self (archive footage)

(1933) Nagana

as Dr. Walter Tradnor

(1964) The Big Parade of Comedy

as Leon (archive footage)

(1939) Screen Snapshots Series 19, No. 1

as Self

(1939) Screen Snapshots Series 18, No. 8

as Melvyn Douglas

(1959) Judgment at Nuremberg

as Gen. Parker

(1948) Studio One

as Cyril Ritchard

(1953) General Electric Theater

as Professor Arthur Barris

(1951) Hallmark Hall of Fame

as Henry Drummond

(1977) Weekend Special

as Grandpa Doc

(1963) The Fugitive

as Dr. Mark Ryder

(1950) Lux Video Theatre

as James Strickland

(1950) Your Show of Shows

as Self - Guest Host

(1963) Bob Hope Presents the Chrysler Theatre

as Pat Konke

(1948) The Philco Television Playhouse

as Richard Gordon

(1961) Ben Casey

as Burton Strang

(1966) CBS Playhouse

as Peter Schermann

(1949) Lights Out

as ---

(1972) Ghost Story

as Grandpa

(1961) Kraft Mystery Theatre

as ---

(1952) Hollywood Off Beat

as Steve Randall

(1948) The Ed Sullivan Show

as Self

(1956) Playhouse 90

as Gen. Parker

(1974) The Lives of Benjamin Franklin

as Stateman Benjamin Franklin

(1951) Hallmark Hall of Fame

as Galileo Galilei

(1948) The Philco Television Playhouse

as The Stranger

(1968) The Dick Cavett Show

as Self - Guest

(1950) What's My Line?

as Self

(1950) Your Show of Shows

as Self - Guest Performer

(1950) What's My Line?

as Self - Panelist