Complex sentence: Chase starred in the NBC sitcom "Community", as aging moist-towelette tycoon Pierce Hawthorne, whom he has played since 2009, however left the show in 2012 after completing majority of the episodes of season 4.
Split into simpler sentences: Chase starred in the NBC sitcom "Community", as aging moist-towelette tycoon Pierce Hawthorne, whom he has played since 2009. However, Chase left the show in 2012 after completing majority of the episodes of season 4.