Episode Details
Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Upcoming Airings on 
Thursday, Sep 19 at 1:00pm ET
Thursday, Oct 31 at 1:30pm ET
More from Whose Line is it Anyway? Season 4
Browse All EpisodesEpisode 319 – Alfonso Ribeiro
Episode 401Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 311- Keegan-Michael Key 4
Episode 402Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 324 – Karla Souza
Episode 403Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 320 – Yvette Nicole Brown
Episode 404Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 316 – Kaitlin Doubleday
Episode 405Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 305 – Lolo Jones
Episode 406Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 326 – Jonathan Mangum
Episode 407Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 408 – Joey Fatone
Episode 408Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 413 – Tamara Mowry-Housley
Episode 409Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 328 – Jeff Davis 5
Episode 410Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 404 – Misty May-Treanor
Episode 411Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 405 – Lyndie Greenwood
Episode 412Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 402 – Chris Jericho
Episode 413Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 419 – Rachel Bloom
Episode 414Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 410 – Lea Thompson
Episode 415Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 403 – Katie Cassidy
Episode 416Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 409 – Brett Dier
Episode 417Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 416 – Emily Bett Rickards
Episode 418Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 412 – Jonathan Mangum 2
Episode 419Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler
Episode 406 – Cheryl Hines
Episode 420Improvisational comedy competition show in which four members of the regular cast, accompanied by guest stars, perform various comic games and sketches with hilarious results! Hosted by Aisha Tyler