U.S. television stars Melanie Lynskey and Jimmi Simpson are divorcing, documents filed in Los Angeles County Superior Court show. Lynskey is a cast member of the sitcom "Two and a Half Men." Simpson is part of the "Always Sunny in Philadelphia" ensemble. TMZ said Lynskey cited irreconcilable differences as the reason for the split in the court documents she filed Sept. 25. The couple married in 2007 and separated this past April.