演职人员
导演
詹姆斯·马什
Lab Tech
Bob Angelini
Dr. William Lemmon
Bern Cohen
Stephanie LaFarge
Reagan Leonard
Self (archive footage)
Nim Chimpsky
Self
Stephanie LaFarge
Self
Herbert Terrace
Self (archive footage)
Wer LaFarge
Self
Jenny Lee
Self
Laura-Ann Petitto
Self
Bill Tynan
Self
Joyce Butler
Self
Renne Falitz
Self
Bob Ingersoll
Self
Alyce Moore
Self (as Dr. James Mahoney)
James Mahoney
Self
Henry Herrmann
Self (archive footage)
Cleveland Amory
Self
Marion Probst
Self
Chris Byrne
Signing Girl: re-enactment unit
Anna May Marsh
Renee Falitz: re-enactment unit
Sarah Sakaan
Beefy Guy: re-enactment unit
Dennis Lauricella
Beefy Guy: re-enactment unit (as Robert J. Nesi)
Robert Nesi
Laura-Ann Petitto: re-enactment unit
Scarlett Bermingham
Mike Devoe
Mike Devoe
Wer LaFarge: re-enactment unit (as Michael LePera)
Michael S. LePera
Nim Cimpsky - Reenactment Unit (uncredited)
Peter Elliott