Ben Gazzara
Cmdr. Adrian Blake
Acting
Walter Pidgeon
Dr. Samuel Andrews
Acting
Ernest Borgnine
Chief Diver Don MacKay
Acting
Yvette Mimieux
Dr. Leah Jansen
Acting
Donnelly Rhodes
Diver Bob Cousins
Acting
Chris Wiggins
Capt. Williams
Acting
Michael J. Reynolds
Dr. Hal Hamilton
Acting
Mark Walker
Diver Dave Moulton
Acting
Leslie Carlson
Brigs, Triton Radioman
Acting
Stuart Gillard
Diver Phil Bradley
Directing
Ed McGibbon
Dr. Norton Shepherd
Acting
David Renton
Warrant Officer
Acting
Joan Gregson
Dobson
Acting
David Yorston
Diver Stephens
Acting
Ken Pogue
Diver Thomas
Acting
Dave Mann
Hawkes
Acting
Frank Perry
Sub Captain
Acting
Kei Fujiwara
Kay, lab technician
Acting
Dan MacDonald
Lt. Hobbs, Halifax day officer
Acting
Richard Whelan
Radio Officer
Acting