Alex Callam

Dark Mountain

Detective Dave Lewis

The Invisible Killer

Arthur Enslee

Up in the Air

Van Martin - Announcer

That's My Baby!

Doctor Calloway

The Secret Code

Investigator Hogan

Chasing Trouble

Fred Morgan

The Miracle Kid

Al Bolger

Sky Raiders

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

Rubber Racketeers

Butch

The Iron Claw

James Benson

The Cyclone Kid

Big Jim Johnson

Abutres das Planícies

Kurt Redman

Thundering Frontier

Square Deal Scottie