Phase IV

Nigel Davenport

Dr. Ernest D. Hubbs

Michael Murphy

James R. Lesko

Lynne Frederick

Kendra Eldridge

Alan Gifford

Mr. Eldridge

Robert Henderson

Clete

Helen Horton

Mildred Eldridge

David Healy

Radio Announcer (voice) (uncredited)

Saul Bass

Director

Paul B. Radin

Producer

Mayo Simon

Writer