William Callaway

Ultraman: The Adventure Begins 1989

as Combot Model MF842 (Ulysses) (voice)

The Pillow People Save Christmas 1988

as (voices)

The Smurfs: 'Tis the Season to Be Smurfy 1987

as Clumsy Smurf / Rich Man (voice)

Yogi's Great Escape 1987

as Dad / Trapper (voice)

Scooby-Doo! Meets the Boo Brothers 1987

as Billy Bob Scroggins / Beaureguard / Horseman / Ape (voice)

G.I. Joe: The Movie 1987

as Beach Head (voice)

G.I. Joe: Arise, Serpentor, Arise! 1986

as Beach Head (voice)

Inhumanoids: The Movie 1986

as Liquidator (voice)

Smurfily Ever After 1985

as Clumsy Smurf (voice)

UFOria 1984

as Gardan

The Smurfic Games 1984

as Clumsy Smurf / Painter Smurf / Dragon (voice) (as Bill Callaway)

Here Are the Smurfs 1984

as Clumsy Smurf (voice)

The Smurfs Halloween Special 1983

Actor

My Smurfy Valentine 1983

as (voice)

The Smurfs Christmas Special 1982

as (voice)

This Is Kate Bennett... 1982

as Morris Steinman

The Smurfs Springtime Special 1982

as Clumsy Smurf (voice)

Daniel Boone 1981

Actor

Romeo and Smurfette 1981

as Clumsy Smurf (Voice)

Rabbit Test 1978

as Intern

Hanna-Barbera's All-Star Comedy Ice Revue 1978

as Square Bear (voice)

Flush 1977

as Harley

Annie Hall 1977

as Lacey Party Guest

Fun with Dick and Jane 1977

as Record Store Clerk

Thursday's Game 1974

as Cabbie

The Great Northfield Minnesota Raid 1972

as Calliopist

Cat Ballou 1971

as Loopy

The Grasshopper 1970

as Elroy