Pat Burke
Spike Nelson
Captain America / Grant Gardner
Milt Holmes
Johnny Smith
Lancelot 'Gadget' Blaine
Duke Springer
Randy Brooks
Andy Adams
Police Lt. William 'Bill' Decker
Edward Clarkk
Scarf Lennin
Norm Thompson
Joe Dawson
Ralph Andrews
Red Harris
Cliff Halliday
Bob Fuller
Bill Gratton
James 'Mac' McCarthy
Lieut. 'Stichy' Payne
Mackley Q. Greene
Dick Cartwright
Alexander
Agent Melvin Pierce
Terry Murphy
John Jones
Steve Lanahan
Dave Miller
T.P. 'Tap' Keenan
Terry Walsh
'Red' Murphy
Keiffer
Vince Morrell
Rick Fulton
Tex Boyden
Lance O'Leary
Percy 'Slats' Harrington
Bill Kellogg
Jim Faber
Ace Scanlon
Bill Foster
"Bull" Regan
David 'Harp' Santell
George Mayhew
Paul Wayne
Benefit Show Guest (archive footage) (uncredited)
Joe Taylor
Trapped Draegerman (uncredited)
Mel Lynch
Jimmy Carmody
Rusty Gibbs
Gabby Dugan
George Chester
Ed Slayden
Nick DeLargo
Ed Driscoll
Wally Calhoun
Dr. Randolph Jenkins (as Richard Purcell)
Bert (uncredited)
Lead Marine on Ship (uncredited)
Skip McHenry
Radio Announcer (uncredited)
Smiley (as Dick Purcell)
Undetermined Secondary Role (uncredited)