3. Bölüm

Geraldine Brooks

Yvette Leighton

Billy Green Bush

Tom - Duckhunter #3 (as William Bush)

Leonard Stone

Dr. Phillip Gainer

Janos Prohaska

Thetan (uncredited)

Douglas Henderson

Dr. Paul Fredericks (uncredited)

Martin Wolfson

Dr. Herschel

Clay Tanner

Fred - Duckhunter #1

Hal Bokar

Bert - Duckhunter #2

Lee Zimmer

Carl Ford - TV Announcer

Robert Culp

Allen Leighton