Ralph Bellamy (J.L. Dundeen)
Elizabeth Rogers (Irene McKay)
Vito Scotti (Bill Schuster)
Richard X. Slattery (Riley)
Robert Stack (Captain James Morgan)
Gloria Stuart
Mills Watson (Jim Greer)
Than Wyenn (Fedderson)
Francine York (Betsy Schuster)
John Randolph (John Howe)
Lara Parker (Barbara)
Steven Marlo
Sorrell Booke (Robert Dwight)
Paul Carr (Walter Fletcher)
Linden Chiles (Matthew Evans)
Pat Culliton
Burr de Benning (Ted Trevor)
Bradford Dillman (Martin Reed)
David Hedison (Doctor Peter Brooks)
Russell Johnson (Forbes)
Ellen Weston (Ann Trevor)