 The Adventures of Young Indiana Jones: Hollywood Follies1994 · Wyatt Earp | Wyatt Earp |
 Maverick1994 · Poker Player | Poker Player |
 Mob Boss1990 · Don O'Reily | Don O'Reily |
 Alienator1990 · Cpl. Coburn | Cpl. Coburn |
 Saturday the 14th Strikes Back1988 · The Evil One | The Evil One |
 Big Top Pee-wee1988 · Joe the Blacksmith (as Leo V. Gordon) | Joe the Blacksmith (as Leo V. Gordon) |
 The Garbage Pail Kids Movie1987 · Guard #1 | Guard #1 |
 Savage Dawn1985 · Sheriff | Sheriff |
 Fire and Ice1983 · Jarol | Jarol |
 M.A.D.D.: Mothers Against Drunk Drivers1983 · Officer Horvath | Officer Horvath |
 Rage!1980 · Cal's Father | Cal's Father |
 Bog1979 · Dr. John Warren | Dr. John Warren |
 Son of Hitler1979 · Fritz Tünnes | Fritz Tünnes |
 The Lucifer Complex1978 · C.I.A. Chief Al Norris (uncredited) | C.I.A. Chief Al Norris (uncredited) |
 The Shootist1976 · Books' Victim in Flashback (archive footage / uncredited) | Books' Victim in Flashback (archive footage / uncredited) |
 Nashville Girl1976 · Burt | Burt |
 The Pot1975 · Writer | Writer |
 My Name Is Nobody1973 · Red | Red |
 Bonnie's Kids1973 · Charley | Charley |
 The Trackers1971 · Higgins | Higgins |
 You Can't Win 'Em All1970 · Bolek, Writer | Bolek, Writer |
 Pistols 'n' Petticoats1967 · Cyrus Breech | Cyrus Breech |
 Hostile Guns1967 · Hank Pleasant | Hank Pleasant |
 The St. Valentine's Day Massacre1967 · Heitler | Heitler |
 Devil's Angels1967 · Sheriff Henderson | Sheriff Henderson |
 Tobruk1967 · Sgt. Krug, Screenplay | Sgt. Krug, Screenplay |
 Beau Geste1966 · Krauss | Krauss |
 The Night of the Grizzly1966 · Cass Dowdy | Cass Dowdy |
 The Bounty Killer1965 · Writer | Writer |
 The Dictator's Guns1965 · Morrison | Morrison |
 The Girls on the Beach1965 · Second Waiter | Second Waiter |
 Kitten with a Whip1964 · Enders | Enders |
 Kings of the Sun1963 · Hunac Ceel | Hunac Ceel |
 McLintock!1963 · Jones | Jones |
 The Haunted Palace1963 · Edgar Weeden / Ezra Weeden | Edgar Weeden / Ezra Weeden |
 The Terror1963 · Screenplay | Screenplay |
 The Raven1963 · Grimes (voice) (uncredited) | Grimes (voice) (uncredited) |
 Tower of London1962 · Writer | Writer |
 Tarzan Goes to India1962 · Bryce | Bryce |
 The Intruder1962 · Sam Griffin | Sam Griffin |
 The Nun and the Sergeant1962 · Dockman | Dockman |
 The Cat Burglar1961 · Writer | Writer |
 Valley of the Redwoods1960 · Writer | Writer |
 Noose for a Gunman1960 · Link Roy | Link Roy |
 The Wasp Woman1959 · Screenplay | Screenplay |
 The Jayhawkers!1959 · Jake Barton | Jake Barton |
 The Big Operator1959 · Danny Sacanzi | Danny Sacanzi |
 Attack of the Giant Leeches1959 · Screenplay | Screenplay |
