All Cast
Ben Gazzara
Cmdr. Adrian Blake
Walter Pidgeon
Dr. Samuel Andrews
Ernest Borgnine
Chief Diver Don MacKay
Yvette Mimieux
Dr. Leah Jansen
Donnelly Rhodes
Diver Bob Cousins
Chris Wiggins
Capt. Williams
Mark Walker
Diver Dave Moulton
Leslie Carlson
Brigs, Triton Radioman
Stuart Gillard
Diver Phil Bradley
Michael J. Reynolds
Dr. Hal Hamilton
