The Giant Gila Monster

Don Sullivan

Chase Winstead

Fred Graham

Sheriff Jeff

Lisa Simone

Lisa

Shug Fisher

Old Man Harris

Bob Thompson

Mr. Wheeler

Janice Stone

Missy Winstead

Ken Knox

Horatio Alger 'Steamroller' Smith

Gay McLendon

Mom Winstead

Don Flournoy

Gordy

Cecil Hunt

Mr. Compton

Stormy Meadows

Agatha Humphries

Howard Ware

Ed Humphries

Pat Reeves

Rick

Jan McLendon

Jennie

Jerry Cortwright

Bob

Beverly Thurman

Gay

Clarke Browne

Chuck

Grady Vaughn

Pat Wheeler

Desmond Dhooge

Hitchhiker (as Desmond Doogh)

Ann Sonka

Whila

Yolanda Salas

Liz Humphries

Gordon McLendon

Narrator (uncredited)

Angus G. Wynne III

Dumb Teen ((uncredited)