character - Alan Armstrong / Spy Smasher / Jack Armstrong

character - (archive footage)

character - Nick Mantee

character - Brick Bradford

character - Stanley Lowell

character - Lamont Cranston / The Shadow

character - Sam Wire

character - Mike Samo

character - Lamont Cranston / The Shadow

character - Tex Hanlon

character - Lamont Cranston / The Shadow

character - Eddie Condon

character - Jerry Devery

character - Bob Moore

character - Lt. Larry Farrell

character - Jim Marsden

character - Mason

character - Frank Martin

character - Alex Anderson

character - Sergei

character - Sgt. Cummings

character - Ensign Wright (uncredited)

character - Alan Armstrong / Jack Armstrong

character - Steve-Detective

character - Steve Randall

character - Capt. Baker

character - Adam Dyer

character - Paul Conrad

character - Jim Murray

character - Don Shawhan

character - Ralph Percy

character - Elmer Laydon - One of The Four Horsemn

character - Lt. Wood

character - Richard Cabot

character - Al Williams

character - Eddie Farrell

character - Matt Hibbard

character - Curtis Whitman

character - Alan Davis

character - Paulie Mitchell

character - Lieutenant Dick 'Tex' Price

character - Talgon's Brother - a Martian Captain

character - Bradley (uncredited)

character - Detective (uncredited)

character - Jack's Friend (uncredited)

character - Stratosled Pilot (Talgon's Brother)

character - Tom Marlin

character - Lawrence 'Larry' Deering

character - Cliff Mallory

character - Joe MacIntyre

character - Jerry Carter

character - Don Gray

character - Clay Harrison

character - Tom 'Bomber' Brown / Tom Hayes

character - Joe

character - Logger Paying Doctor (uncredited)

character - Jim Morgan

character - Jack Hall

character - Jimmy Stafford

character - NWMP Cpl. Jerry Hale

character - J.W. 'Jack' Keaton, Jr.

character - Frank Bradley

character - Dale Wentworth

character - Bruce Gordon

character - Young Officer at Beer Garden (Uncredited)

character - Party Guest (Uncredited)

character - Dallas

character - Bob, college boy at club

character - Lee Davis

character - Jack

character - Party Guest

character - Robert "Bob" Eller

character - Ray

character - Tom Stone

character - Reggie

character - Lieutenant Wilbur Allister

character - Hal Rogers

character - 1st Admirer

character - Nifty Morgan

character - Kane Halliday aka Kid Roberts

character - Student

character - Party Guest (uncredited)