Kathryn Aselton is an American actress, film director and producer. She directed and co-starred in The Freebie, which was shown in the non-competition "Next" category at the Sundance Film Festival in 2010. She also starred in the FX sitcom The League for its seven-season run from 2009 to 2015, and in the first two seasons of FX's Marvel Comics X-Men drama Legion.

Legion is an American superhero television series created by Noah Hawley for FX, based on the Marvel Comics character David Haller / Legion. Set in an alternate timeline of the X-Men film series, it was produced by FX Productions in association with Marvel Television, and ran for three seasons from 2017 to 2019, with Hawley serving as showrunner.