Paul Stewart

as Matt Costello

as Phillip's Father

as Dr. Segal

as Julio Scallini

as David Samuels

as Gen. Clark

as Helverston

as Self

as Barton

as Jensen

as Goodman

as Charlie LeGrand

as Joe Lye

as Arnold 'Arnie' Valent

as Dr. Otto Wolff

as Carl Evello

as Bert Townsend

as Detective Karni

as Syd Murphy

as Attorney Stone

as Harry Thompson

as Lou Donelli

as 'Dutch' Kruger

as Whitey Lake

as Mr. Craig

as Earl Boettiger

as Major "Doc" Kaiser (flight surgeon)

as Dave Argus

as Joe Kellerson

as Tommy Haley

as Zepp

as Julio

as Raymond