Man from Atlantis

Patrick Duffy

Mark Harris

Patrick Duffy

Billy Jones

Alan Fudge

C.W. Crawford

Belinda Montgomery

Dr. Elizabeth Merrill

J. Víctor López

Cetacean crew

Victor Buono

Mr. Schubert

Anson Downes

Cetacean crew

Robert Lussier

Brent

Michael J. London

Cetacean crew

Michael J. London

Air Lock Man

Michael J. London

Popeye

Kenneth Tigar

Dr. Miller Simon

Ted Neeley

Jack Muldoon

Fred Beir

Captain Bracy

Neville Brand

Stringer

Dean Santoro

Ernie Smith

Sharon Farrell

Charlene Baker

Richard Laurance Williams

Cetacean crew

Brandyn Barbara Artis

Cetacean crew

Jean Marie Hon

Cetacean crew