as Tom 'Bomber' Brown / Tom Hayes
as Paul Conrad
as Jim Marsden
as Party Guest (uncredited)
as Brick Bradford
as Clay Harrison
as Jim Murray
as Bradley (uncredited)
as Logger Paying Doctor (uncredited)
as Tex Hanlon
as Nick Mantee
as Eddie Farrell
as Stratosled Pilot (Talgon's Brother)
as Reggie (uncredited)
as Alan Davis
as Jack Hall
as Joe MacIntyre
as Lieutenant Dick 'Tex' Price
as Lamont Cranston / The Shadow
as Lee Davis
as Jimmy Stafford
as Detective (uncredited)
as Ray
as Lt. Larry Farrell
as Jack's Friend (uncredited)
as Bruce Gordon
as Al Williams
as Alan Armstrong / Jack Armstrong
as Lieutenant Wilbur Allister
as Tom Marlin
as (archive footage)
as Steve-Detective
as Lt. Wood
as Tom Stone
as Young Officer at Beer Garden (Uncredited)
as Bob Moore
as Talgon's Brother - a Martian Captain
as Matt Hibbard
as Joe
as Mason
as Richard Cabot
as Adam Dyer
as Ensign Wright (uncredited)
as Ralph Percy
as Jim Morgan
as Stanley Lowell
as Dallas
as Don Shawhan
as Jerry Carter
as Capt. Baker
as Curtis Whitman
as Hal Rogers
as Alan Armstrong / Spy Smasher / Jack Armstrong
as J.W. 'Jack' Keaton, Jr.
as Sam Wire
as NWMP Cpl. Jerry Hale
as Nifty Morgan
as Student
as Jerry Devery
as Frank Bradley
as Frank Martin
as Eddie Condon
as Dale Wentworth
as 1st Admirer
as Elmer Laydon - One of The Four Horsemn
as Mike Samo
as Party Guest
as Lawrence 'Larry' Deering
as Alex Anderson
as Party Guest (Uncredited)
as Cliff Mallory
as Sgt. Cummings
as Paulie Mitchell
as Steve Randall
as Bob, college boy at club
as Jack
as Sergei
as Robert "Bob" Eller
