Steve Zodiac / Captain Grey (voice)
Barrington Cabot
Capt. Calvelli
Panama Hat
Dr. Wallace
Esterbrook
Bill Freed
Andrew Tolliver
Lt.Gen. Geoffrey Keyes
Van Leuwen
Maj. Gen. Maxwell D. Taylor
CIA Director
Mr Baxter
Connors
CIA Man
Judson Murphy
Captain Paul Travers (voice)
Jim Perkins
Mike Foster
Major Smith
Bud Fredericks (uncredited)
Bill Martin
Commander Spelling U.S.N.
C.M.A.A.
Craig Owen
Jeffrey Clayton
Mike, assistant coroner