The Alien Within

John Henry Richardson

Samanski

Suzanne Ager

Erin West

Richard Harrison

Max Adrian

Melissa Moore

Monica Roarke

Gordon Mitchell

Dan Thorn

Forrest J. Ackerman

Pool Guy

Crystal Shaw

Secretary

Drew Godderis

Ross Anderson (archive footage)

Bobbie Bresee

Lynn Roman (archive footage)

Dawn Wildsmith

Evelyn Avery (archive footage)

John Carradine

Dr. Emil Zeitman (archive footage)

Fox Harris

Harry (archive footage)