FX has booked the Marvel-themed drama "Legion" in the past. The first season has 8 episodes. It will start filming in Vancouver in the summer of 2016. It is now confirmed that it will premiere on February 8, US time.This "X-Men" drama in the parallel universe, created by Noah Hawley and Bryan Singer (so it can't be connected to the movie), is adapted from the character David Haller of Marvel Comics (codenamed Legion / Daqun / Legion). The original work is the son of Professor X Charles Xavier (played by Dan Stevens, the eldest cousin of "Downton Abbey"). He suffers from severe schizophrenia, but he is also an OMEGA-level mutant.He originally thought he was crazy and went in and out of the mental hospital many times, but once after having a strange experience with a patient, he found that his auditory hallucinations and hallucinations might be real.Rachel Keller, who starred in the second season of "Fargo", will play the heroine Syd Barrett, a 20-year-old woman who can be self-sufficient on the streets. She still believes that she will be happy and protects her weak heart with a sharp and thorny attitude, even if she knows that it will make her hate and in danger.In addition, she couldn't stand the physical contact with her.Aubrey Plaza plays Lenny, the male lead’s friend. Although she is deeply involved in alcoholism and drugs, she always believes that her life will get better one day. Although she is rude, she has positive energy to be optimistic.Jean Smart plays Melanie, a therapist who cares for patients but is also very strict. He has smart thinking and can treat patients with unconventional techniques.Jeremie Harris plays Ptonomy, who is like an outsider, arrogant, and sarcastic, and was once a child prodigy, which made him drown in the past.Amber Midthunder, who once performed in "Black Eat Black Banshee", plays Kerry. Although he acts like a mature woman, he has a curiosity like a child.She is a scholar and lives a protected but not ordinary life.Katie Aselton plays Amy, the protagonist's sister, who has been optimistic, but has been taking care of her younger brother for many years and has made her difficult; Bill Irwin plays Cary Loudermilk, an annoying scientist.