Marc Singer

Paul Ferguson

Timothy Marlowe

Tracy Scoggins

Barbara White

Mary Woronov

Dr. Glatman

Irene Miracle

Sarah Ferguson

Jonathan Farwell

Steve Malceno

Tom Poster

Outsider (as Thomas W. Poster)

Don Pugsley

Smith (as Donald Pugsley)

Joseph Hardin

Wesson

Diana James

Belle

John Lafayette

Watson

Kurt Braunreiter

Tommy Hinkley

Lab Assistant

Merritt Yohnka

Keisha

Woman at Motel (as Raquel Rios)

Daryl Haney

Panhandler

Michael McDonald

Animal Rights Activist (uncredited)

Thierry Notz

Director

John Brancato

Guión

Michael Ferris

Guión

Dean Koontz

Novela

Dean R. Koontz

Novela

Edward J. Pei

Director de Fotografía

Rick Conrad

Compositor de la Música Original

Roger Corman

Productor

Concorde Cinema Group

Compañía de Produccion

Kurt Bryant

Dobles