Forrest Compton

as Mr. Emerson

as Mr. Stackhouse

as President Flynn

as Mr. Colter

as Biddleton

as Elgin Bonning

as Capt. Chester Albertson

as Dale Newton

as Glenn Orland

as George Lith

as Special Agent Henry Andover

as Bernard Stoddard

as Agent Roy McAdams

as SAC Edgar Brocton

as SAC Anthony Harper

as RA Martin Boles

as Major Zimmer

as Major Krantz

as Colonel Gray

as Captain Brinson

as Lieutenant Colonel

as Colonel

as Captain Dirksen

as Dr. Harmon

as John Bradley

as Jeff Stevens (uncredited)

as Major Lodge

as Robin Flynn

as ASW Officer

as Silas

as Davis

as Charles Beacroft

as Harry Tiburon

as Owen Frazer (uncredited)

as Steve Culver

as Charles Peake