导演

Edward L. Cahn

编剧

Curt Siodmak

制片人

Leon Chooluck

演员

理查德·邓宁

Richard Denning

饰  Dr. Chet Walker

安吉拉·史蒂文斯

Angela Stevens

饰  Joyce Walker

S. John Launer

饰  Capt. Dave Harris

Michael Granger

饰  Frank Buchanan

Gregory Gaye

饰  Dr. Wilhelm Steigg (

Linda Bennett

饰  Penny Walker

Tristram Coffin

饰  Dist. Atty. MacGraw

哈里·劳特

Harry Lauter

饰  Reporter #1

Larry J. Blake

饰  Reporter #2 (as Larr

Charles Evans

饰  Chief Camden

Pierre Watkin

饰  Mayor Bremer

莱恩·钱德勒

Lane Chandler

饰  Gen. Saunders (uncre

Edward Coch

饰  Jason Franchot (uncr

Dick Crockett

饰  Creature who calls C

Richard H. Cutting

饰  Dick Cutting, Radio

Karl 'Killer' Davis

饰  Willard Pearce (firs

Eddie Foster

饰  Bartender (uncredite

Terry Frost

饰  Tom, Policeman (uncr

Don Harvey

饰  Lester Banning (uncr

Paul Hoffman

饰  Tom Dunn (uncredited

Charles Horvath

饰  Creature (uncredited

Nelson Leigh

饰  Dr. Kenneth C. Norto

Tyler McVey

饰  Police officer (uncr

Michael Ross

饰  Creature Vernon Dunn

摄影

Fred Jackman Jr.

音效

J.S. Westmoreland

音乐

Mischa Bakaleinikoff

艺术指导

Paul Palmentola

布景

Sidney Clifford

副导演/助理导演

Eddie Saeta

剪辑

Aaron Stell

特技

Jack Erickson