David Maclean

Jimmy Hunt

Acting

Dr. Stuart Kelston

Arthur Franz

Acting

Dr. Pat Blake, MD

Helena Carter

Acting

Mr. George MacLean

Leif Erickson

Acting

Mrs. Mary MacLean

Hillary Brooke

Acting

Col. Fielding

Morris Ankrum

Acting

Police Sgt. Mack Finlay

Walter Sande

Acting

Police Chief A.C. Barrows

Bert Freed

Acting

Army Sgt. Rinaldi

Max Wagner

Acting

Lt. Blair

Charles Gibb

Acting

Army Capt. Roth

Milburn Stone

Acting

Officer Jackson

Douglas Kennedy

Acting

Officer Blaine

Charles Cane

Acting

Mrs. Wilson

Fay Baker

Acting

Kathy Wilson

Janine Perreau

Acting

Mr. Turner

John Eldredge

Acting

Kelston's Secretary

Barbara Billingsley

Acting

MP

Richard Deacon

Acting

Major Clary

Gil Herman

Acting

The Martian Intelligence

Luce Potter

Acting

Mutant Carrying David to 'Intelligence'

Lock Martin

Acting

Second Mutant Guarding the "Intelligence"

Max Palmer

Acting

Jim the Gas Station Attendant

Todd Karns

Acting

Pentagon Chief of Staff

Frank Wilcox

Acting

Dr. William Wilson

Robert Shayne

Acting

Sgt. Baker

William Phipps

Acting

Col. Mayberry

William Forrest

Acting

Brainard (bit)

Peter Brocco

Acting