Threshold
Voltar
Donald SutherlandDr. Thomas Vrain
John MarleyEdgar Fine
Sharon AckerTilla Vrain
Mare WinninghamCarol Severance
Jeff GoldblumDr. Aldo Gehring
Michael LernerHenry De Vici
Richard BlackburnDr. Cutter- Michael C. GwynneJay Wingate
Robert JoyDavid Art
Allan F. NichollsDr. Basil Rents
Kate TrotterMrs. Anderson
Lally CadeauAnita, Vrain's Secretary
Stuart GillardDick Getts
Barbara GordonWanda, Vrain's Scrub Nurse- Samantha LangevinMrs. Clure
Jessica SteenTracy Vrain
Casey StevensLarry Hammond