Un famoso científico, mientras realiza experimentos con ADN, accidentalmente crea un monstruo.
Stephen Collins
Pete Casimir
Larry Gates
President Alan Doby
Christine Lahti
Dr. Louise Casimir
Jason Miller
Dr. Tom Henderson
Nehemiah Persoff
Prof. Leo Tedeschi
David Spielberg
Mayor Frank Bellona
Josef Sommer
Dr. Martin Grossman
Peter Evans
Harold
Kenneth Kimmins
Dr. Lewis Halloran
Mark Hulcher
Boy
Andrew Early
Youth
Glenn E. Crane
Professor
Lalla Rolfe
Woman
David Kilgore
Nelson Chase
