Sylvia Anderson as Terry Grant

Lieu Chinh as Kako Umaro

Jacqulin Cole as April Thomas

Liza Greer as Trish

Robin Greer as Policewoman Elaine Brenner

Susan Kiger as Michelle Wilson

Noela Velasco as Maria

Jack Palance as Mike Farrell

Peter Lawford as Burke

Jim Backus as Cmdr. Lindsey March

Neville Brand as Miller

Pat Buttram as Van Salesman

Arthur Godfrey as Himself

Alan Hale Jr. as Manny

Darby Hinton as Sticks