博·布里奇斯

Beau Bridges

饰：Dr. Simon Kress

Dylan Bridges

饰：Josh Kress

劳埃德·布里吉斯

Lloyd Bridges

饰：Col. Kress

Nathaniel DeVeaux

Nathaniel DeVeaux

饰：Security Captain

Mark Saunders

饰：Lab Assistant

David Cameron

David Cameron

饰：Technician #1

Brandon Obray

饰：Todd Brantley,(scenes deleted)

海伦·谢费

Helen Shaver

饰：Cathy Kress

金·寇兹

Kim Coates

饰：Dave Stockley

Patricia Harras

Patricia Harras

饰：Debbie

Deryl Hayes

Deryl Hayes

饰：Policeman

J.B. Bivens

J.B. Bivens

饰：Mover