Threshold
Celebrated heart surgeon Thomas Vrain supports the research of an offbeat scientist who has invented an artificial heart. Against the advice of the Ethics Committee, Dr. Vrain decides to perform the first artificial heart transplant.
Donald Sutherlandas Dr. Thomas VrainJohn Marleyas Edgar FineSharon Ackeras Tilla VrainMare Winninghamas Carol SeveranceJeff Goldblumas Dr. Aldo GehringMichael Lerneras Henry De ViciRichard Blackburnas Dr. CutterMichael C. Gwynneas Jay WingateRobert Joyas David ArtAllan F. Nichollsas Dr. Basil RentsKate Trotteras Mrs. AndersonLally Cadeauas Anita, Vrain's SecretaryStuart Gillardas Dick GettsBarbara Gordonas Wanda, Vrain's Scrub NurseSamantha Langevinas Mrs. ClureJessica Steenas Tracy VrainCasey Stevensas Larry Hammond