Wayne Crawford

Mike Canfield

Jason Evers

Dr. Elliot Snow

Roberta Leighton

Liza Williams

Cliff Emmich

Lester

William Kerwin

Sheriff Ben Williams

Bert Freed

Jack

Barbara Keegan

Maggie Snow (as Bobbie Ellyne Kosstrin)

Jerry Albert

Bubba (as Jerry Rhodes)

Frank Logan

Sam

Harry Kerwin

Goverment Agent #1

Rick Rhodes

Goverment Agent #2

Robert G. Noe

Hotel Clerk

William Roundebush

Boy Student

Denise Taylor

Girl Student

Leigh Walsh

Girl Student

Dan Fitzgerald

Cook (as Daniel L. Fitzgerald)

Edmund Lupinski

Boy on Beach (as Ed Lupinski)

Kim Nichols

Girl on Beach

Wayne Crawford

Director

Harry Kerwin

Director

Betty Kerwin

Script Supervisor

Francis A. Payne

Second Assistant Director

Ed Wujciak

First Assistant Director

Harry Kerwin

Guión, Guión Adaptado, Historia

Wayne Crawford

Guión, Guión Adaptado, Historia

Edmund Gibson

Director de Fotografía

John Partipilo

Still Photographer

Nik Petrik

Key Grip

Wayne Crawford

Underwater Director of Photography

Klaus Schulze

Compositor de la Música Original

Harry Kerwin

Productor

Wayne Crawford

Productor

American General Pictures

Compañía de Produccion

Marketing Film

Compañía de Produccion

Republic Pictures

Compañía de Produccion

Emily S. Riddell

Production Manager

Barbara Kerwin

Maquilladora, Diseño de Vestuario

Elizabeth Lambert

Maquilladora

Jane McCulley

Editor

Derek C. Anderson

Assistant Editor

Charles Hines

Gaffer