City Beneath the Sea

Stuart Whitman

Adm. Michael Matthews

Robert Wagner

Brett

Rosemary Forsyth

Lia Holmes

Robert Colbert

Cmdr. Woody Patterson

Burr DeBenning

Aguila

Susana Miranda

Elena

Paul Stewart

Barton

Whit Bissell

Prof. Holmes

Richard Basehart

The President

Joseph Cotten

Dr. Ziegler