Diamond Frontier

Victor McLaglen

As Terrence Regan

John Loder

As Dr. Charles Clayton

Anne Nagel

As Jeanne Krueger

Cecil Kellaway

As Noah

Philip Dorn

As Jan Stafford De Winter

Francis Ford

As Derek Bluje

Hugh Sothern

As Travers

Ferris Taylor

As Paul Willem

J. Anthony Hughes

As Matt Campbell

Evelyn Selbie

As Julia Bloem