彼得·格雷夫斯

Peter Graves

饰：Dr. Douglas Martin

James Seay

饰：Colonel Banks

史蒂夫·彭德尔顿

Steve Pendleton

饰：Briggs, FBI

弗兰克·格斯特

Frank Gerstle

饰：Dr. Curt Kruger

Shepard Menken

饰：Major Clift, MD (as Shep Menken)

Jack Daly

饰：Power House Guard

Ron Kennedy

Ron Kennedy

饰：Sgt. Powers, Sentry

Ben Welden

饰：Tar Baby 2 Pilot

Robert Roark

饰：Guard

罗伊·恩格尔

Roy Engel

饰：First police dispatcher. (uncredited)

Coleman Francis

饰：Guy in power plant who answers the phone (uncredited)

Barbara Bestar

Barbara Bestar

饰：Ellen Martin

Burt Wenland

饰：Sergeant Bandero

Ruth Bennett

Ruth Bennett

饰：Miss Vincent, Secretary

Mark Scott

饰：Narrator

约翰·佛雷德里克

John Frederick

饰：Deneb

Lester Dorr

饰：Station Attendant