James Gregory

as Bryagh / Smrgol (voice)

as Scotty

as Gough

as Chief Blair

as District Attorney

as Sam Foley

as Rutledge

as Ursus

as Darrell Evans Hughes

as Gen. Homer Prentiss

as MacDonald

as Duster Heyward

as MacDonald

as MacDonald

as Dr. O'Brien

as Morgan Hastings

as Maj. Gen. Alexander Upton Quaint

as Col. Edgar Pyser

as Norris Bixby

as Commander C.R. Ritchie

as Sen. John Yerkes Iselin

as Brad Byrd

as Tom Deparma

as Schaefler (narrator)

as Grimsell

as Flood

as Sergeant Shipley

as Ben Fraser

as Ralph Nevins

as Chief Petty Officer Lane