character - Wilmont Oliver

character - Dean Houseman

character - Ackerman

character - Judge

character - Mr. Griffin

character - John

character - His Lordship

character - Dr. Elliot

character - Jeffrey

character - Committee Chairman

character - Howard Hawks

character - Thorne Abbott

character - Doctor at Prison

character - Gas Station Attendant

character - Carter Hendricks

character - Patterson

character - Paolo Visconti

character - Dr. Carson

character - Mr. Perry

character - Beverly

character - Mr. Wilson

character - Chalmer

character - Judge Wheeler

character - Russ Whitman

character - Judge F.F. Carlson

character - Doctor

character - Dale Jurgenson

character - Judge

character - Foreign Editor

character - Schlosser

character - Phil Springerman

character - National Editor

character - Colonel Anders

character - News Alert Reporter

character - Lt. Gen. Richard K. Sutherland

character - Edwin Shirley

character - 1st Senator

character - Simon Grossland

character - Dr. Morrow

character - Dr. Block

character - Reverend Depugh

character - Brogan

character - Lancaster

character - Manager

character - Surgeon

character - Colonel to Dunbar

character - Judge

character - Harold Spring

character - Paul Andrews

character - Dr. Haley

character - Man with Tape Recorder at Hospital (uncredited)

character - Fred

character - Leroy Lowenfeld

character - Mr. Stedman

character - Dr. Crump

character - Dr. Diamond

character - Dr. Adam Nelson

character - Dr. Nelson

character - Dr. Monte Diamond

character - Dr. David Diamond

character - Assistant

character - Assistant Doctor

character - Dr. Grant Nelson

character - Doctor

character - Dr. Carter (uncredited)

character - Dr. Carter

character - Neurosurgeon

character - Col. Cowen

character - Roger Campbell

character - Nogrady (uncredited)

character - Mr. Bronson

character - Silverstein (uncredited)

character - Older Alien

character - Physician

character - Policeman

character - Personnel Manager

character - Osborne

character - Ronald Aives

character - Announcer

character - Tolliver

character - Assemblyman Potter

character - Felix

character - Desk Clerk

character - Detective

character - Dr. C. F. Sears

character - Major Domo

character - Oliver Dunning

character - Jacobs

character - Mr. Lyons

character - Mr. Breckenridge

character - Mr. Dunham

character - Dr. Dan Clark

character - Patrolman

character - Minister

character - Det. Marlowe

character - Hotel Carlton Bartender

character - Clerk

character - Dean Hopkins