Characters played by Tom Tyler
Captain Marvel
Characters played by Frank Coghlan Jr.
Billy Batson
Characters played by William 'Billy' Benedict
'Whitey' Murphy
Characters played by Louise Currie
Betty Wallace
Characters played by Robert Strange
John Malcolm
Characters played by Harry Worth
Prof. Luther Bentley
Characters played by Bryant Washburn
Henry Carlyle [Ch. 1-3]
Characters played by John Davidson
Tal Chotali
Characters played by George Pembroke
Dr. Stephen Lang [Ch. 1-9]
Characters played by George Lynn
Prof. Dwight Fisher [Ch. 1-6]
Characters played by Reed Hadley
Rahman Bar [Ch. 1
11-12]
Characters played by Jack Mulhall
James Howell [Ch. 1]
Characters played by Kenne Duncan
Barnett - Chief Henchman [Ch. 2-10]
Characters played by Nigel De Brulier
Shazam [Ch. 1]
Characters played by John Bagni
Cowan - Henchman [Ch. 2-10]
Characters played by Carleton Young
Martin - Henchman [Ch. 3-9]
Characters played by Leyland Hodgson
Maj. Rawley [Ch. 1]
Characters played by Stanley Price
Owens - Henchman
Driver [Ch. 3-5]
Characters played by Ernest Sarracino
Akbar [Ch. 11-12]
Characters played by Tetsu Komai
Chan Lai [Ch. 4]
Characters played by Wilson Benge
Benson - Lang's Butler [Ch. 8]
Characters played by Lynton Brent
Lefty - Heavy at Lang's Estate [Ch. 8]
Characters played by Earle D. Bunn
Dam Heavy 1 [Ch. 7]
Characters played by Ed Cassidy
Dodge - Captain of 'The Carfax' [Ch. 10]
Characters played by Steve Clemente
Native 5
Characters played by Armand Cortes
Hamid - the Wise Man [Ch. 12]
Characters played by Victor Cox
Henchman
Characters played by Dick Crockett
Bridge Heavy [Ch. 2]
Characters played by Joe De La Cruz
Native 6
Characters played by Eddie Dew
Cavalry Lieutenant [Ch. 1]
Characters played by Curley Dresden
Native 3 [Ch. 1]
Characters played by James Fawcett
Curio Shop Henchman 2
Characters played by Bud Geary
Pete - Lang's Estate Caretaker [Ch. 8-9]
Characters played by Augie Gomez
Native 2
Characters played by Ray Hanson
Trucker
Characters played by Sam Harris
British Col. Hudson [Ch. 1]
Characters played by Jerry Jerome
Brandon - Airport Heavy [Ch. 3]
Characters played by Al Kikume
Native Chief [Ch. 11]
Characters played by Marten Lamont
British Radio Sergeant [Ch. 1]
Characters played by Paul Lopez
Ali
Characters played by Stanley Mack
Henchman at Fisher's House [Ch. 6]
Characters played by Ted Mapes
First 'Carfax' Seaman [Ch. 10]
Characters played by Frank Marlowe
Gus - Henchman [Ch. 8]
Characters played by Gerald Mohr
Scorpion
Characters played by Chuck Morrison
Carlson - First Mate on 'The Carfax' [Ch.10]
Characters played by Loren Riebe
Curio Shop Heavy [Chs. 2-4]
Characters played by Francis Sayles
Carter - Truck-Rental Heavy [Ch. 4-5]
Characters played by George Suzanne
Dam Heavy 2 [Ch. 7]
Characters played by Al Taylor
Native 3 [Ch. 1]
Characters played by Duke Taylor
Lefty - Guillotine Heavy [Chs. 2-3]
Characters played by Ken Terrell
Hawks - Bentley's Butler [Ch. 6]
Characters played by Frank Wayne
Steve - Third Heavy at Lang's Estate [Chs. 9-10]
Characters played by Henry Wills
Native 5
Characters played by Carl Zwolsman
Army Sentry [Ch. 1]