William Kerwin
- Bomber Harris
1989 Fred Walsh
- P.I. Private Investigations
1987 Anthony
- Dreams Lost, Dreams Found
1987 Edward
- Sno-Line
1985 Max McClain
- The Heavenly Kid
1985 Suburbanite
- Doin' Time
1985 Sound
- Porky's II: The Next Day
1983 Boa Man (as Rooney Kerwin)
- Absence of Malice
1981 Walker
- The Star Maker
1981 Doctor Parker (uncredited)
- Make Me an Offer
1980 Claude Benson
- The Aliens Are Coming
1980 Professor Reeve (uncredited)
- The Evictors
1979 Harry Richardson
- Barracuda
1978 Sheriff Ben Williams
- Convention Girls
1978
- Doctors' Private Lives
1978 Dr. George Bana
- The Strange Possession of Mrs. Oliver
1977 Old Man
- Tomcats
1977 Detective Tom Garrett
- Whiskey Mountain
1977 Key Grip
- No Way Back
1976
- The Log of the Black Pearl
1975 Alfred
- God's Bloody Acre
1975 Monroe
- Impulse
1974 Soldier
- Ride in a Pink Car
1974 Earl
- The Single Girls
1974 Writer
- House of Terror
1973 Russell Donovan (uncredited)
- The Godmothers
1973 Speedboat Owner
- Class of '63
1973 Rex
- Dear Dead Delilah
1972 Burke (uncredited)
- All My Darling Daughters
1972 Lester (uncredited)
- The Ballad of Billie Blue
1972 Writer
- Revenge Is My Destiny
1971 Policeman
- Sometimes Aunt Martha Does Dreadful Things
1971 Detective (as Thomas Wood)
- Jump
1971 Key Grip
- Penny Wise
1970 Gaffer
- Sweet Bird of Aquarius
1970 Screenplay
- Flesh Feast
1970 Gaffer
- The Naked Zoo
1970 Gaffer
- Campus Heat
1969
- Childish Things
1969 Mr. Sullivan
- Suburban Roulette
1968 Production Manager
- My Third Wife, George
1968 Producer
- The Hooked Generation
1968 FBI Man #1
- The Winter's Tale
1968 Jeff
- Girls Come Too!
1968 Nudist (uncredited)
- Playgirl Killer
1967 Story
- Winchester '73
1967 Roland Harcourt
- A Taste of Blood
1967 Production Manager
- The Gruesome Twosome
1967 Production Manager
- Jimmy, the Boy Wonder
1966 Man Mowing Lawn (uncredited)
- Sting of Death
1966 Screenplay
- Adam Lost His Apple
1965 Screenplay
- Two Thousand Maniacs!
1964 Tom White
- Sex and the College Girl
1964 Tentor
- Blood Feast
1963 Detective Pete Thornton
- Scum of the Earth
1963 Harmon Johnson
- Goldilocks and the Three Bares
1963 Tommy Sweetwood
- Boin-n-g
1963 Al Harding
- Bell, Bare and Beautiful
1963 Rick Bradshaw
- Six She's and a He
1963 Writer
- The Adventures of Lucky Pierre
1962 The Plumber
- Five Finger Exercise
1962 Mark (uncredited)
- Mrs. Gibbons' Boys
1962 Matthew
- Living Venus
1961 Jack Norwall
- Pagan Island
1961 Sea Captain
- The Long Rope
1961 Steve Matthews
- The Fiercest Heart
1961 Bart
- Carving Magic
1959 Joe
- Tread Softly Stranger
1958 Michael
- Thundering Jets
1958 Gary
- The Amazon Trader
1956 Husband
- The Eternal Sea
1955 Cole
- Dragon's Gold
1954 Gene
- The Moonlighter
1953 Tony
- Everything I Have Is Yours
1952 Larry
