Undersea Kingdom

Ray Corrigan

Ray 'Crash' Corrigan

Lois Wilde

Diana Compton

Monte Blue

Unga Khan

William Farnum

Sharad

?

Boothe Howard

Ditmar

Raymond Hatton

Gasspon

C. Montague Shaw

Professor Norton

?

Lee Van Atta

Billy Norton

Smiley Burnette

Briny Deep

?

Frankie Marvin

Salty

Lon Chaney Jr.

Capt. Hakur

Lane Chandler

Darius

Jack Mulhall

Andrews

?

John Bradford

Joe

Malcolm McGregor

Zogg