Richard Bailey

Lance Reardon

Linda Stirling

Claire Forrest

Roy Barcroft

Capt. Mephisto

Kenne Duncan

Sidney Brand

Forrest Taylor

Prof. William Forrest

Forbes Murray

Prof. Harry Hargraves

Jack Ingram

Edward Armstrong

Harry Strang

Frederick "Fred" Braley

Ed Cassidy

Paul Melton

Frank Alten

John Raymond

Lane Chandler

Police Insp. Reed

Russ Vincent

Ruga

Dale Van Sickel

Barker / Ritter / Lewis / Frazier / Sardon

Tom Steele

Lyons / Bailey

Duke Green

Spencer Harvey

Spencer Gordon Bennet

Yakima Canutt

Wallace Grissell