Rachel Keller (who was a fan fave on FX's Fargo) has nabbed the lead female role in the network's upcoming series, titled Legion. There's no word on when the Legion pilot will air.
Here's how The Hollywood Reporter describes Legion -
"The Legion pilot introduces the story of David Haller, a man who may be more than human and who has has struggled with mental illness since his teenage years. Diagnosed as schizophrenic, David has been in and out of psychiatric hospitals for years. But after a strange encounter with a fellow patient, he’s confronted with the possibility that the voices he hears and the visions he sees might be real."FX's 'X-Men' Take 'Legion' Taps 'Fargo' Favorite to Star