Peter Graves

Jeff Knight

Eileen Dietz

Dana

Frank Ashmore

George Walker

Dick Sargent

Dr. Jameson

Keenan Wynn

Jake Noble

Lurene Tuttle

Anna Noble

Frank Birney

Reporter Birney

Eugene Robert Glazer

Guide #2 (as Gene Glazer)

Tim Donnelly

Richard (as Timothy Donnelly)

Chuck Hayward

Walker Man