John Phillip Law
- Railroad to Hell: A Chinaman's Chance
2008 Foreman Dan
- The Swinging Lust World of John Philip Law
2007 Himself
- Ray of Sunshine
2006
- The Three Faces of Terror
2004 Professor Peter Price
- Spider-Man vs. Doc Ock
2004 John Hardesky / The Cat (voice)
- Curse of the Forty-Niner
2002 Sheriff Murphy
- CQ
2001 Chairman
- Bad Guys
2000 Chief Wilford Brimley
- Wanted
1999 1. Verfolger
- Hindsight
1996 Vincent Lehman
- Burning Heart
1995 Böhme
- Angel Eyes
1993 Steven Fox
- The Mountain of the Lord
1993 Brigham Young
- The Day of the Pig
1993 Azazel
- Marilyn Alive and Behind Bars
1992 Harry Billings
- Delta Force Commando II: Priority Red One
1990 Col. Barberon
- Alienator
1990 Ward Armstrong
- Nerds of a Feather
1989 (uncredited)
- Cold Heat
1989 R.C. Mallon
- Space Mutiny
1988 Flight Cmdr. Elijah Kalgan
- Blood Delirium
1988 Charles Saint Simone
- Thunder 3
1988 Deputy Sheriff
- A Case of Honor
1988 Capt. Roger L. Barnes
- Striker
1988 Frank Morris
- Moon in Scorpio
1987 Allen
- Johann Strauss: The King Without a Crown
1987 Maximilian Steiner
- The Overthrow
1987 Shaw
- Gila and Rik
1987 Alessio
- American Commandos
1985 Kelly
- Night Train to Terror
1985 Harry Billings (segment "The Case of Harry Billings")
- Rainy Day Friends
1985 Dr. Stephen Kendrick
- Hijacked to Hell
1984 Ted Barner
- Tin Man
1983 Dr. Edison
- Attack Force Z
1982 Lieutenant Veitch
- Tarzan the Ape Man
1981 Harry Holt
- The Pioneers
1980 A.P Karns
- Ring of Darkness
1979 The Exorcist
- The Best Place to Be
1979 Dr. Gary Mancini
- Der Schimmelreiter
1978 Deichgraf Hauke Haien
- The Devil's Bed
1978 John Vanetti
- Eyes Behind the Wall
1977 Arturo
- Target of an Assassin
1977 Shannon
- The Cassandra Crossing
1976 Major Stark
- A Whisper in the Dark
1976 Alex
- Your God My Hell
1976
- The Spiral Staircase
1975 Steven Sherman
- Doctor Justice
1975 Dr. Benjamin Justice
- Open Season
1974 Greg
- The Golden Voyage of Sinbad
1973 Captain Sinbad
- Stardust
1973 John
- Von Richthofen and Brown
1971 Baron Manfred von Richthofen
- The Love Machine
1971 Robin Stone
- The Last Movie
1971 Little Brother
- Strogoff
1970 Michael Strogoff
- The Hawaiians
1970 Noel Hoxworth
- Mondo Rocco
1970
- Diary of a Telephone Operator
1969 Crispino
- Danger: Diabolik
1968 Diabolik
- Barbarella
1968 Pygar
- Skidoo
1968 Stash
- The Sergeant
1968 Pfc. Tom Swanson
- Death Rides a Horse
1967 Bill Meceita
- Hurry Sundown
1967 Rad McDowell
- The Harem
1967 (uncredited)
- The Russians Are Coming! The Russians Are Coming!
1966 Alexei Kolchin
- Three Nights of Love
1964 Fra Felice
- High Infidelity
1964 Ronald
- Smog
1962
- Citizens
Rex Sterling
