Dan Stevens and Aubrey Plaza to headline Marvel's 'Legion' on FX

The Marvel universe continues to expand with Legion, an X-Men-based television series currently filming for FXDownton Abbey's Dan Stevens, Parks and Recreation's Aubrey Plaza and Fargo's Jean Smart just joined Rachel Keller in the cast.

Stevens plays David, a diagnosed schizophrenic whose life changes when he meets a girl. Plaza plays his friend Lenny, a drug and alcohol abuser with "the likeable energy of the impossible optimist despite her rough demeanor," according to a release. Smart plays a therapist, and Keller plays the prickly but street smart Syd. Read more...