John Agar

Barry Rogers

Francine York

Pat Trent

Jeff Alexander

Dr. Simond Trent

Shirley McLine

Brenda Simmons

Cal Duggan

Ritchie

Charles McLine

Rabbit Simms

Bill McGhee

Tracker

Bill Thurman

Driscoll West / The Swamp Creature

Tony Huston

Tom

Ted Mitchell

Valjean

Roger Ready

Frenchie

Gayle Johnson

Mura

Michael Tolden

Elderly Father

Annabelle Weenick

Hotel Clerk

Patrick Cranshaw

Pilot

J.V. Lee

Brother

Naomi Bruton

Marcie

Robert Dracup

Art Direction

Larry Buchanan

Director

Jack Bennett

Special Effects

Ralph K. Johnson

Director of Photography

Larry Buchanan

Producer

Edwin Tobolowsky

Associate Producer

Tony Huston

Screenplay

Joreta C. Cherry

Production Coordinator

James A. Sullivan

Unit Production Manager

Ronald Stein

Original Music Composer