Whose Line Is It Anyway?Season 42016 · 20 episodesEpisodes1Alfonso RibeiroGuests: comedian Gary Anthony Williams; actor Alfonso Ribeiro.2Keegan-Michael Key 4Guest: comedian Keegan-Michael Key.3Karla SouzaGuests: comedian Jeff Davis; actor Karla Souza.4Yvette Nicole BrownGuests: comedian Gary Anthony Williams; actress Yvette Nicole Brown. Games Performed: Hollywood director, duet, scenes from a hat and helping hands5Kaitlin DoubledayGuests: comedian Jonathan Mangum; actress Kaitlin Doubleday Games Performed: Let's make a date, duet, dubbing, scenes from a hat and helping hands6Lolo JonesGuest: comedian Jeff Davis.7Jonathan MangumGuest: comedian Jonathan Mangum.8Joey FatoneJoey Fatone; comedian Jeff Davis.9Tamera Mowry-HousleyTamera Mowry-Housley; comedian Greg Proops10Jeff Davis 5With guest star appearance by comedian Jeff Davis.11Misty May-TreanorWith guest star appearance by May-Treanor.12Lyndie GreenwoodWith guest star appearance by Lyndie Greenwood.13Chris JerichoWith guest star appearance by Chris Jericho.14Rachel BloomWith guest star appearance by Rachel Bloom.15Lea ThompsonActress Lea Thompson; comedian Jonathan Mangum.16Katie CassidyActress Katie Cassidy; comedian Brad Sherwood.17Brett DierGuests: comedian Jeff Davis and actor Brett Dier.18Emily Bett RickardsGuests: comedian Gary Anthony Williams and actress Emily Bett Rickards.19Jonathan Mangum 2Guests: comedian Jonathan Mangum.20Cheryl HinesGuests: comedians Brad Sherwood and Jeff Davis, plus actress Cheryl Hines. Games played: Let's Make a Date, Doo Wop, Duet, Scenes from a Hat, and Helping Hands.Season 1Season 2Season 3Season 5Season 6Season 7Season 8Season 9Season 10Season 11Season 12Season 13