Jack's Friend (uncredited)

Curtis Whitman

Jack

Robert "Bob" Eller

Richard Cabot

Ralph Percy

Bruce Gordon

Mike Samo

(archive footage)

Steve Randall

Nick Mantee

Dallas

Alan Armstrong / Spy Smasher / Jack Armstrong

Jim Murray

Lamont Cranston / The Shadow

Lamont Cranston / The Shadow

Lamont Cranston / The Shadow

Lee Davis

Jim Marsden

Jerry Devery

Nifty Morgan

Frank Bradley

Reggie (uncredited)

Tom 'Bomber' Brown / Tom Hayes

Clay Harrison

Hal Rogers

Kane Halliday aka Kid Roberts

Don Gray

Jim Morgan

Bob Moore

Lawrence 'Larry' Deering

Alan Armstrong / Jack Armstrong

Jerry Carter

Joe MacIntyre

Tom Marlin

Sgt. Cummings

Eddie Condon

Lieutenant Wilbur Allister

Tom Stone

Student

Lieutenant Dick 'Tex' Price

Cliff Mallory

Don Shawhan

NWMP Cpl. Jerry Hale

Eddie Farrell

Detective (uncredited)

Ray

Stanley Lowell

Young Officer at Beer Garden (Uncredited)

Alan Davis

Matt Hibbard

J.W. 'Jack' Keaton, Jr.

Bob, college boy at club

Paul Conrad

Jack Hall

Tex Hanlon

Logger Paying Doctor (uncredited)

Al Williams

Frank Martin

Brick Bradford

Capt. Baker

Alex Anderson

Steve-Detective

Paulie Mitchell

Mason

Elmer Laydon - One of The Four Horsemn

Dale Wentworth

1st Admirer

Sam Wire

Adam Dyer

Talgon's Brother - a Martian Captain

Bradley (uncredited)

Stratosled Pilot (Talgon's Brother)

Party Guest (uncredited)

Sergei

Ensign Wright (uncredited)

Lt. Larry Farrell

Lt. Wood

Party Guest

Party Guest (Uncredited)

Joe

Jimmy Stafford