Legion Guest cast, played by Ellie Araiza Episode 1x01: Chapter 1 (Feb 8, 2017) Episode 1x02: Chapter 2 (Feb 15, 2017) Episode 1x03: Chapter 3 (Feb 22, 2017) Episode 1x04: Chapter 4 (Mar 1, 2017) Episode 1x08: Chapter 8 (Mar 29, 2017)