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