Alex Callam

Van Martin - Announcer

Up in the Air

Detective Dave Lewis

Dark Mountain

Arthur Enslee

The Invisible Killer

Doctor Calloway

That's My Baby!

James Benson

The Iron Claw

Square Deal Scottie

Thundering Frontier

Fred Morgan

Chasing Trouble

Big Jim Johnson

The Cyclone Kid

Kurt Redman

The Phantom Plainsmen

Al Bolger

The Miracle Kid

Capt. Long [Chs. 1-2, 4, 11-12]

Sky Raiders

Investigator Hogan

The Secret Code

Mug (uncredited)

It Ain't Hay

Commander (uncredited)

Anchors Aweigh

Butch

Rubber Racketeers