Kane Richmond

as Alan Armstrong / Spy Smasher / Jack Armstrong

as (archive footage)

as Nick Mantee

as Brick Bradford

as Stanley Lowell

as Lamont Cranston / The Shadow

as Sam Wire

as Mike Samo

as Lamont Cranston / The Shadow

as Tex Hanlon

as Lamont Cranston / The Shadow

as Eddie Condon

as Jerry Devery

as Bob Moore

as Lt. Larry Farrell

as Jim Marsden

as Mason

as Frank Martin

as Alex Anderson

as Sergei

as Sgt. Cummings

as Ensign Wright (uncredited)

as Alan Armstrong / Jack Armstrong

as Steve-Detective

as Steve Randall

as Capt. Baker

as Adam Dyer

as Paul Conrad

as Jim Murray

as Don Shawhan

as Ralph Percy

as Elmer Laydon - One of The Four Horsemn

as Lt. Wood

as Richard Cabot

as Al Williams

as Eddie Farrell

as Matt Hibbard

as Curtis Whitman

as Alan Davis

as Paulie Mitchell

as Lieutenant Dick 'Tex' Price

as Talgon's Brother - a Martian Captain

as Bradley (uncredited)

as Detective (uncredited)

as Jack's Friend (uncredited)

as Stratosled Pilot (Talgon's Brother)

as Tom Marlin

as Lawrence 'Larry' Deering

as Cliff Mallory

as Joe MacIntyre

as Jerry Carter

as Don Gray

as Clay Harrison

as Tom 'Bomber' Brown / Tom Hayes

as Joe

as Logger Paying Doctor (uncredited)

as Jim Morgan

as Jack Hall

as Jimmy Stafford

as NWMP Cpl. Jerry Hale

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

as Frank Bradley

as Dale Wentworth

as Bruce Gordon

as Young Officer at Beer Garden (Uncredited)

as Party Guest (Uncredited)

as Dallas

as Bob, college boy at club

as Lee Davis

as Jack

as Party Guest

as Robert "Bob" Eller

as Ray

as Tom Stone

as Reggie (uncredited)

as Lieutenant Wilbur Allister

as Hal Rogers

as 1st Admirer

as Nifty Morgan

as Kane Halliday aka Kid Roberts

as Student

as Nightclub Patron (uncredited)

as Party Guest (uncredited)