William Callaway

The Pillow People Save Christmas

as (voices)

1988

The Smurfs: 'Tis the Season to Be Smurfy

as Clumsy Smurf / Rich Man (voice)

1987

Yogi's Great Escape

as Dad / Trapper (voice)

1987

Scooby-Doo! Meets the Boo Brothers

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

1987

Ultraman: The Adventure Begins

as Combot Model MF842 (Ulysses)

1987

G.I. Joe: The Movie

as Beach Head (voice)

1987

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

as Beach Head (voice)

1986

Inhumanoids: The Movie

as Liquidator (voice)

1986

Smurfily Ever After

as Clumsy Smurf (voice)

1985

UFOria

as Gardan

1984

The Smurfic Games

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

1984

Here Are the Smurfs

as Clumsy Smurf (voice)

1984

The Smurfs Halloween Special

1983

My Smurfy Valentine

as (voice)

1983

The Smurfs Christmas Special

as (voice)

1982

This Is Kate Bennett...

as Morris Steinman

1982

The Smurfs Springtime Special

as Clumsy Smurf (voice)

1982

Daniel Boone

1981

Romeo and Smurfette

as Clumsy Smurf (Voice)

1981

Rabbit Test

as Intern

1978

Hanna-Barbera's All-Star Comedy Ice Revue

as Square Bear (voice)

1978

Flush

as Harley

1977

Annie Hall

as Lacey Party Guest

1977

Fun with Dick and Jane

as Record Store Clerk

1977

Thursday's Game

as Cabbie

1974

The Great Northfield Minnesota Raid

as Calliopist

1972

Cat Ballou

as Loopy

1971

The Grasshopper

as Elroy

1970