Film • ''
The Damned Don't Cry'' (1950) as Springboard Diver (uncredited) •
The Asphalt Jungle (1950) as William Doldy (uncredited) •
Rhubarb (1951) as Michael 'Shorty' McGirk (uncredited) •
The Red Badge of Courage (1951) as Corporal (voice, uncredited) •
Scandal Sheet (1952) as Man on Crutches (uncredited) •
Storm Over Tibet (1952) as Co-Pilot •
Androcles and the Lion (1952) as Soldier (uncredited) •
The Magnetic Monster (1953) as Co-Pilot •
South Sea Woman (1953) as Marine in Audience at Court Martial (uncredited) •
World for Ransom (1954) as Corporal (uncredited) •
Prisoner of War (1954) as Man on Crutches (uncredited) •
A Star is Born (1954) as Delivery Boy (uncredited) •
Drum Beat (1954) as Scotty •
The Silver Chalice (1954) as Father (uncredited) •
Strategic Air Command (1955) as Airman (uncredited) •
Kiss Me Deadly (1955) as Harvey Wallace •
The Big Knife (1955) as Stillman (uncredited) •
Target Zero (1955) as Private Dan O'Hirons (uncredited) •
World Without End (1956) as Nihka (uncredited) •
Johnny Concho (1956) as Townsman (uncredited) •
Attack! (1956) as Sergeant Ingersol •
The Black Whip (1956) as Thorney •
Copper Sky (1957) as Pokey •
Black Patch (1957) as Deputy Petey Walker •
Cowboy (1958) as Cowboy Bitten by Snake (uncredited) •
The Shaggy Dog (1959) as Thurm •
The Wild and the Innocent (1959) as Ben Stocker •
The Horse Soldiers (1959) as Virgil •
Sanctuary (1961) as Dog Boy •
The Deadly Companions (1961) as Parson •
The Man Who Shot Liberty Valance (1962) as Floyd •
Showdown (1963) as Charlie Reeder •
McLintock! (1963) as Agard (Indian Agent) •
Invitation to a Gunfighter (1964) as Fiddler •
Brainstorm (1965) as Mr. Clyde •
Shenandoah (1965) as Train Engineer •
The Sons of Katie Elder (1965) as Jeb Ross •
Harper (1966) as Claude •
Nevada Smith (1966) as Strother (uncredited) •
An Eye for an Eye (1966) as Trumbull •
The Flim-Flam Man (1967) as Lovick •
Cool Hand Luke (1967) as The Captain •
True Grit (1969) as Colonel G. Stonehill •
The Wild Bunch (1969) as Jack Coffer •
Butch Cassidy and the Sundance Kid (1969) as Percy Garris •
The Ballad of Cable Hogue (1970) as Bowen •
Red Sky at Morning (1971) as John Cloyd •
The Brotherhood of Satan (1971) as Doc Duncan • ''
Fools' Parade'' (1971) as Lee Cotrill •
Hannie Caulder (1971) as Rufus Clemens •
Pocket Money (1972) as Bill Garrett •
Sssssss (1973) as Dr. Carl Stoner •
Hard Times (1975) as Poe •
Rooster Cogburn (1975) as Shanghai McCoy •
The Great Scout & Cathouse Thursday (1976) as Billy •
Slap Shot (1977) as Joe McGrath •
The End (1978) as Dr. Waldo Kling •
Up in Smoke (1978) as Arnold Stoner •
Love and Bullets (1979) as Louis Monk •
The Champ (1979) as Riley •
Nightwing (1979) as Selwyn •
The Villain (1979) as Parody Jones •
The Secret of Nikola Tesla (1980) as George Westinghouse •
Hotwire (1980) as The Weasel (final film role)
Television •
Dangerous Assignment – episode – The Venetian Story – Riri (1952) •
Gunsmoke – episode – Professor Lute Bone (1956) •
Gunsmoke – episode – Cooter- Cooter (1956) •
I Love Lucy – episode – Off To Florida – Coffee Shop Clerk (1956) •
Zane Grey Theater – episode – The Necessary Breed – Telegraph Clerk, Joby (1957) •
Have Gun - Will Travel – episode – A Matter of Ethics – Fred Coombs (1957) •
Gunsmoke – episode – “Liar From Blackhawk” - Ed Davey (1957) •
Have Gun - Will Travel – episode – High Wire – Dooley Delaware (1957) •
The Grey Ghost – episode – Reconnaissance Mission – Michael (1957) •
The Walter Winchell File – Little Jules – "Exclusive Story" (1958) •
Gunsmoke – episode – Dooley Surrenders – Emmett Dooley (1958) •
Trackdown – episode – A Stone for Benny French – Benny French (1958) •
The Rebel – episode – Johnny Yuma – Jess (1959) •
Have Gun - Will Travel – episode – One Came Back – Carew (1959) •
Whirlybirds – episode – Without a Net – The Great Herman (1959) •
Rawhide (1959) – Meeker in S2:E8, "Incident of the Haunted Hills" •
The Twilight Zone – episode – "
The Grave" – Mothershed (1961) •
Gunsmoke – episode – Tall Trapper – Marv Rowley (1961) •
Gunsmoke – episode – The Trappers – Beaver skin trapper Billy (1962) •
Have Gun - Will Travel – episode "Lazarus" – Boise Peabody (1962) •
Perry Mason – episode – The case of the Fickle Filly – Joe Mead (1962) •
Perry Mason – episode – The Case of the Brazen Bequest – Pete Gibson (1962) •
Perry Mason – episode – The Case of the Drowsy Mosquito – Gerald Sommers (1963) •
Perry Mason – episode – The Case of the Hasty Honeymooner – Roy Hutchison (1965) •
The Fugitive – episode – Devil's Carnival – Deputy Shirky Saulter (1964) •
Bonanza – episode – The Saga of Muley Jones – Yuri (1964) •
Gunsmoke – episode – No Hands – Will Timble – S.9 E.19 (1964) •
Rawhide (1965) – Bates in S7:E30, "The Gray Rock Hotel" •
Perry Mason – episode – The Case of the Hasty Honeymooner – Roy Hutchinson (1965) •
The Dick Van Dyke Show – episode – Baby Fat – Harper Worthington Yates (1965) •
Bonanza – episode – The Meredith Smith – Little Meredith Smith (1965) •
Kentucky Jones – episode – Most Precious Gold – Boney Benton (1965) •
The Virginian – episode – The Claim – Finley (1965) •
Death Valley Days – episode The Four Dollar Law Suit – Alfred Hall (1966) •
Lost in Space – episode – Blast Off Into Space – Nerim (1966) •
The Big Valley - episode - Target - Dan'l Hawks (1966) •
Death Valley Days – episode – Silver Tombstone – Ed Schieffelin (1967) •
The Guns of Will Sonnet – episode – Message at Noon – Harvey Bains (1967) • ''
Gilligan's Island'' – episode – Take A Dare – George Barkley (1967) •
The Big Valley – episode – Brother Love – Fludd (1967) •
The Invaders – episode – Moonshot – Charlie Coogan (1967) •
Gentle Ben – episode – The Opportunist – Reed Olmstock (1967) •
The Guns of Will Sonnet – episode – Joby – Joby (1968) •
It Takes a Thief – episode – Birds of a Feather – Paul Rooney (1968) •
Daniel Boone – episode – The Terrible Tarbots – Tarbot (1969) •
Bonanza – episode – The Silence at Stillwater – Lonnie Stern (1969) •
The Virginian – episode – You Can Lead A Horse To Water – Luther Watson (1970) •
Marcus Welby, M.D. – episode – Nobody Wants a Fat Jockey – Terry Riggs (1970) •
Bonanza – episode – The Imposters – Joad Bruder (1970) •
Bonanza – episode – The Younger Brothers' Younger Brother – Cole Younger (1972) • ''
Walt Disney's Wonderful World of Color'' – episodes – The Boy and the Bronc Busters: Parts 1 and 2 (1973) •
Hawkins – 8 episodes (series regular) – R. J. Hawkins (1973–1974) •
Gunsmoke – episode – Island in the Desert: Part 1 and Part 2 – Hermit Ben Snow (1974) • ''
Movin' On'' – episode – Long Way to Nowhere – Cabe Miller (1975) •
The Rockford Files – episodes – The Trees, the Bees and T.T. Flowers – Thomas Tyler "T.T" Flowers (1977) •
Vega$ – episode – Yes, My Darling Daughter – Hank Jenner (1978) •
Saturday Night Live – episode – Strother Martin – host (1980) ==References==