Sigourney Weaver
Colonel Ward
Dr. Grace Augustine
Ship's Computer (voice)
Bartholomew
Michelle Bradley
Laverne
The Director
Grandma
Rex Brooks
Dr. Geraldine 'Geri' Bennett
Alice Hunt
Max Conners
Margaret Matheson
Ramona
Dr. Rachel Kay
The Narrator (voice)
Linda
Frieda (voice)
Jean Carrack