詹姆斯·阿尼斯

James Arness

饰：'The Thing'

玛格丽特·谢里丹

Margaret Sheridan

饰：Nikki Nicholson

肯尼斯·托比

Kenneth Tobey

饰：Captain Patrick Hendry

罗伯特·科恩斯韦特

Robert Cornthwaite

饰：Dr. Arthur Carrington

道格拉斯·斯宾塞

Douglas Spencer

饰：Ned 'Scotty' Scott

James R. Young

James R. Young

饰：Lt. Eddie Dykes

杜威·马丁

Dewey Martin

饰：Crew Chief Bob

罗伯特·尼克尔斯

Robert Nichols

饰：Lt. Ken 'Mac' MacPherson

William Self

饰：Corporal Barnes

爱德华·弗朗茨

Eduard Franz

饰：Dr. Stern

Sally Creighton

Sally Creighton

饰：Mrs. Chapman

罗伯特布雷

Robert Bray

饰：Captain (unconfirmed)

埃德蒙·布雷翁

Edmund Breon

饰：Dr. Ambrose (uncredited)

Nicholas Byron

Nicholas Byron

饰：Tex Richards (uncredited)

Ted Cooper

Ted Cooper

饰：Lieutenant (unconfirmed)

约翰·迪克斯

John Dierkes

饰：Dr. Chapman (uncredited)

George Fenneman

饰：Dr. Redding (uncredited)

李从福

Lee Tung Foo

饰：Lee, a Cook (uncredited)

保罗·费斯

Paul Frees

饰：Dr. Vorhees (uncredited)

埃弗雷特格拉斯

Everett Glass

饰：Dr. Wilson (uncredited)

Milton Kibbee

饰：Bit Part (unconfirmed)

David McMahon

饰：Brig. Gen. Fogarty (uncredited)

Edgar Murray

饰：Bit Part (unconfirmed)

Bill Neff

饰：Bill Stone (uncredited)

H.B. Newton

H.B. Newton

饰：Bit Part (unconfirmed)

Walter Ng

Walter Ng

饰：Second Cook (uncredited)

Carmen Nisbet

Carmen Nisbet

饰：Bit Part (unconfirmed)

William J. O'Brien

William J. O'Brien

饰：Bit Part (unconfirmed)

Allan Ray

Allan Ray

饰：Officer (unconfirmed)

诺贝特·席勒

Norbert Schiller

饰：Dr. Laurence (uncredited)

Cap Somers

饰：Bit Part (unconfirmed)

Lucille Thompson

Lucille Thompson

饰：Bit Part (unconfirmed)

Ray McDonald

饰：Bit Part (unconfirmed)

James Ogg

James Ogg

饰：Bit Part (unconfirmed)

Jimmy Ogg

James Young

James Young

Robert Stevenson