Casts

Ken Clark

Steve Benton

Yvette Vickers

Liz Walker

Jan Shepard

Nan Greyson

Michael Emmet

Cal Moulton

Tyler McVey

Doc Greyson

Bruno VeSota

Dave Walker

Gene Roth

Sheriff Kovis

Dan White

Porky Reed

George Cisar

Lem Sawyer

Guy Buccola

Giant Leech (uncredited)

Joseph Hamilton

Sam Peters (uncredited)

Walter Kelley

Mike (uncredited)

Bill Scully

Search Party Member (uncredited)

Carl Sklover

Search Party Member (uncredited)

Ross Sturlin

Giant Leech (uncredited)

James Miller

Jermey (uncredited)

Killian Miller

Victim (uncredited)

Crews

Bernard L. Kowalski

Director

Roger Corman

Executive Producer

John M. Nickolaus Jr.

Director of Photography

Carlo Lodato

Editor

Gene Corman

Producer

Charles Rosher Jr.

First Assistant Camera

Kinta Zertuche

Production Secretary

Richard M. Rubin

Property Master

Jack Bohrer

Production Manager

Al Overton Sr.

Sound

Leo Gordon

Screenplay

Leo Gordon

Original Story

Alexander Laszlo

Original Music Composer

Daniel Haller

Art Direction

Anthony Magro

Associate Editor