William Lundigan
Dr. Richard Donald Stanton
Martha Hyer
Dr. Jane Flynn
Richard Carlson
Dr. Jerry Lockwood
Robert Karnes
Walter Gordon
Herbert Marshall
Dr. Donald L. Stanton / Narrator
Lawrence Dobkin
Dr. Delmar
George Eldredge
Dr. Paul Dryden
Dan Riss
Dr. Frank Werner
Michael Fox
Dr. Klinger
King Donovan
James O'Herli
Kem Dibbs
David Wells
James Best
Dr. Sidney K. Fuller
Dawn Addams
Susan Manners