 | Elvis: A Life in Music (2026) as Self (archive footage) |
 | Remembering Gene Wilder (2024) as Self (archive photo/footage) |
 | The Twilight Zone: A 60th Anniversary Celebration (2019) as Martin Sloan (archive footage) |
 | Sam Peckinpah's West: Legacy of a Hollywood Renegade (2004) as Self (archive footage) |
 | Death In Hollywood (1990) |
 | Hollywood Scandals and Tragedies (1988) as (archive footage) (uncredited) |
 | Bruce Lee, the Legend (1984) as Self |
 | Hollywood Out-takes and Rare Footage (1983) as Self (archive footage) (uncredited) |
 | 死亡遊戲 (1978) as Jim Marshall |
 | Spectre (1977) as Dr. Ham Hamilton |
 | Sherlock Holmes in New York (1976) as Mortimer McGraw |
 | The Hindenburg (1975) as Edward Douglas |
 | The Killer Elite (1975) as Lawrence Weyburn |
 | The Turning Point of Jim Malloy (1975) as Ray Whitehead |
 | The Great Ice Rip-Off (1974) as Harkey Rollins |
 | Un fiocco nero per Deborah (1974) as Ofenbauer |
 | Bring Me the Head of Alfredo Garcia (1974) as Quill |
 | The Neon Ceiling (1971) as Jones |
 | Lovers and Other Strangers (1970) as Hal Henderson |
 | They Shoot Horses, Don't They? (1969) as Rocky Gravo |
 | Companions in Nightmare (1968) as Eric Nicholson |
 | The Shuttered Room (1967) as Mike Kelton |
 | Strange Bedfellows (1965) as Richard Bramwell |
 | Invisible Diplomats (1965) as Brad |
 | A Ticklish Affair (1963) as Key Weedon |
 | For Love or Money (1963) as Sonny Smith |
 | Le Couteau dans la plaie (1962) as David Barnes |
 | Kid Galahad (1962) as Willy Grogan |
 | That Touch of Mink (1962) as Roger |
 | The Spiral Staircase (1961) as Stephen Warren |
 | Ninotchka (1960) as Leon Dolga |
 | The Story on Page One (1959) as Larry Ellis |
 | Ask Any Girl (1959) as Evan Doughton |
 | The Tunnel of Love (1958) as Dick Pepper |
 | Teacher's Pet (1958) as Dr. Hugo Pine |
 | The James Dean Story (1957) as Self |
 | Desk Set (1957) as Mike Cutler |
 | The Desperate Hours (1955) as Chuck Wright |
 | Young at Heart (1954) as Alex Burke |
 | Rear Window (1954) as Jeff's Editor (voice) (uncredited) |
 | Torch Song (1953) as Cliff Willard |
 | Arena (1953) as Hob Danvers |
 | City That Never Sleeps (1953) as Johnny Kelly |
 | The Girl Who Had Everything (1953) as Vance Court |
 | Holiday for Sinners (1952) as Jason Kent |
 | You for Me (1952) as Dr. Jeff Chadwick |
 | Too Young to Kiss (1951) as John Tirsen |
 | Come Fill the Cup (1951) as Boyd Copeland |
 | Slaughter Trail (1951) as Ike Vaughn aka Murray |
 | Only the Valiant (1951) as Lt. William Holloway |
 | Target Unknown (1951) as Capt. Reiner |
 | Hunt the Man Down (1950) as Paul Bennett |
 | Tell It to the Judge (1949) as Alexander Darvac |
 | Lust for Gold (1949) as Pete Thomas |
 | Wake of the Red Witch (1948) as Samuel 'Sam' Rosen |
 | The Three Musketeers (1948) as Porthos |
 | The Woman in White (1948) as Walter Hartright |
 | Escape Me Never (1947) as Caryl Dubrok |
 | Old Acquaintance (1943) as Rudd Kendall |
 | Air Force (1943) as Co-Pilot |
 | Breakdowns of 1942 (1942) as Self |
 | The Gay Sisters (1942) as Gig Young |
 | The Mad Martindales (1942) as Peter Varney (as Byron Barr) |
 | The Male Animal (1942) as Student (uncredited) |
 | You're in the Army Now (1941) as Soldier |
 | They Died with Their Boots On (1941) as Lt. Roberts (uncredited) |
 | One Foot in Heaven (1941) as First Groom Asking for Dog Licence (uncredited) |
 | The Tanks Are Coming (1941) as Jim Allen |
 | Sergeant York (1941) as Marching Soldier (uncredited) |
 | Dive Bomber (1941) as Abbott - Guinea Pig 2 Experiment 32 (uncredited) |
 | Misbehaving Husbands (1940) as Floor Walker (as Byron Barr) |
