Kane Richmond

as Alan Armstrong / Spy Smasher / Jack Armstrong

as (archive footage)

as Nick Mantee

as Stanley Lowell

as Brick Bradford

as Lamont Cranston / The Shadow

as Sam Wire

as Lamont Cranston / The Shadow

as Mike Samo

as Lamont Cranston / The Shadow

as Tex Hanlon

as Jerry Devery

as Lt. Larry Farrell

as Eddie Condon

as Bob Moore

as Frank Martin

as Mason

as Alex Anderson

as Jim Marsden

as Ensign Wright (uncredited)

as Sergei

as Sgt. Cummings

as Steve-Detective

as Alan Armstrong / Jack Armstrong

as Steve Randall

as Capt. Baker

as Jim Murray

as Don Shawhan

as Paul Conrad

as Adam Dyer

as Lt. Wood

as Richard Cabot

as Elmer Laydon - One of The Four Horsemn

as Ralph Percy

as Matt Hibbard

as Paulie Mitchell

as Al Williams

as Curtis Whitman

as Lieutenant Dick 'Tex' Price

as Eddie Farrell

as Alan Davis

as Talgon's Brother - a Martian Captain

as Jack's Friend (uncredited)

as Stratosled Pilot (Talgon's Brother)

as Detective (uncredited)

as Bradley (uncredited)

as Tom Marlin

as Jerry Carter

as Lawrence 'Larry' Deering

as Joe MacIntyre

as Cliff Mallory

as Don Gray

as Jim Morgan

as Joe

as Logger Paying Doctor (uncredited)

as Tom 'Bomber' Brown / Tom Hayes

as Clay Harrison

as Jack Hall

as J.W. 'Jack' Keaton, Jr.

as Frank Bradley

as Bruce Gordon

as Jimmy Stafford

as Dale Wentworth

as NWMP Cpl. Jerry Hale

as Lee Davis

as Young Officer at Beer Garden (Uncredited)

as Robert "Bob" Eller

as Jack

as Party Guest (Uncredited)

as Bob, college boy at club

as Dallas

as Party Guest

as Ray

as Tom Stone

as Lieutenant Wilbur Allister

as 1st Admirer

as Nifty Morgan

as Reggie (uncredited)

as Kane Halliday aka Kid Roberts

as Hal Rogers

as Student

as Nightclub Patron (uncredited)

as Party Guest (uncredited)