Whose Line Is It Anyway? - Season 18

With guest star Kevin McHale, cast members Ryan Stiles, Wayne Brady and Colin Mochrie, along with guest comedian Heather Ann Campbell put their comedic skills to the test.

With guest star Laila Ali, cast members Ryan Stiles, Wayne Brady and Colin Mochrie, along with guest comedian Jeff Davis, put their comedic skills to the test.

Hosted by comedian Aisha Tyler, cast members Ryan Stiles, Wayne Brady and Colin Mochrie, along with guest comedian Keegan-Michael Key put their comedic skills to the test.

Cast members Ryan Stiles, Wayne Brady, and Colin Mochrie, along with guest comedian Heather Anne Campbell, put their comedic skills to the test.

With guest star US Olympian Shawn Johnson, cast members Ryan Stiles, Wayne Brady and Colin Mochrie, along with guest comedian Nyima Funk, put their comedic skills to the test.

Cast members Ryan Stiles, Wayne Brady and Colin Mochrie, and guest comedian Greg Proops put their improv comedy skills to the test.

Improvisers Ryan Stiles, Wayne Brady and Colin Mochrie, along with guest comedian Keegan-Michael Key put their comedic skills to the test. Hosted by comedian Aisha Tyler

Hosted by comedian Aisha Tyler, cast members Ryan Stiles, Wayne Brady and Colin Mochrie, along with guest comedian Jonathan Mangum.

Hosted by comedian Aisha Tyler, cast members Ryan Stiles, Wayne Brady and Colin Mochrie, along with guest comedian Jeff Davis.

Hosted by comedian Aisha Tyler, cast members Ryan Stiles, Wayne Brady and Colin Mochrie, guest comedian Jonathan Mangum and a Special Guest Appearance by Kyle Richards from Real Housewives of Beverly Hills.