King of the Congo

Buster Crabbe

Thunda / Roger Drum

Gloria Dea

Princess Pha

Leonard Penn

Boris

Rick Vallin

Andreov

Jack Ingram

Clark

Nick Stuart

Degar

William Fawcett

High Priest

Neyle Morrow

Nahee

Bart Davidson

Alexis

Rusty Wescoatt

Kor

Bernie Gozier

Zahlia

Lee Roberts

Lt. Blake

Alex Montoya

Lipah

Frank Ellis

Ivan

Steve Calvert

Gorilla

George H. Plympton

Screenplay

Spencer Gordon Bennet

Director

Royal K. Cole

Screenplay

Wallace Grissell

Director

Arthur Hoerl

Screenplay