Dr. Abagail Tyler is played by Milla Jovovich. Tyler is a psychiatrist in Nome, Alaska and studies the sleep deprived patients of Nome. She is the main character of the story and very much the enabler to the action. |
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| Ashley Tyler is played by Mia McKenna-Bruce. Ashley is Dr. Tyler's daughter. |
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Robbie Tyler is played by Raphael Coleman. Robbie is Dr. Tyler's son. |
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| Tommy Fisher is played by Corey Johnson. Fisher is one of Abagail Tyler's patients that she hypnotizes. |
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| Abel Campos is played by Elias Koteas. Campos is Tyler's colleague that attempts to deduce the cause of the horror in Tyler's patients. |
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| Sheriff August is played by Will Patton. August is Dr. Tyler's foil, firmly disbelieving Tyler's claims of alien abduction. |
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| Awolowa Odusami is played by Hakim Kae-Kazim. Odusami is the expert called on by Dr. Tyler to interpret the language of her patients while under hypnosis. |
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| Scott Stracinsky is played by Enzo Cilenti. Stracinsky is another patient of Tyler's and becomes paralyzed as a result of Tyler's hypnosis. |
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