Cast & Crew
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Geneviève BujoldDr. Susan Wheeler - Michael DouglasDr. Mark Bellows
- Elizabeth AshleyMrs. Emerson
- Rip TornDr. George
- Richard WidmarkDr. Harris
- Lois ChilesNancy Greenly
- Hari RhodesDr. Morelind
- Gary BartonComputer Technician
- Frank DowningKelly
- Richard DoyleJim
- Alan HaufrectDr. Marcus
- Lance LeGaultVince
- Michael MacRaeChief Resident
- Betty McGuireNurse
- Tom SelleckSean Murphy
- Charles SiebertDr. Goodman
- William WintersoleLab Technician
- Ernest AndersonFirst Doctor
- Harry BaschSecond Doctor
- Maury CooperThird Doctor
- Joni PalmerDance Instructor
- Joanna KernsDiane
- Kay ColeSally
- Sarina C. GrantWoman in Elevator
- Ed HarrisActor
- Michael CrichtonDirector
- Martin ErlichmanProducer
- Michael CrichtonWriter