Threshold

도널드 서덜랜드

Dr. Thomas Vrain

존 마리

Edgar Fine

Sharon Acker

Tilla Vrain

메어 위닝햄

Carol Severance

제프 골드블룸

Dr. Aldo Gehring

Michael Lerner

Henry De Vici

Richard Blackburn

Dr. Cutter

Michael C. Gwynne

Jay Wingate

Robert Joy

David Art

Allan F. Nicholls

Dr. Basil Rents

Kate Trotter

Mrs. Anderson

Lally Cadeau

Anita, Vrain's Secretary