Whose Line Is It Anyway?

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

Ryan Stiles, Wayne Brady, Colin Mochrie and guest comedian Jeff Davis put their comedic skills to the test with boxing champion Laila Ali.

Ryan Stiles, Wayne Brady, Colin Mochrie and guest comedian Keegan-Michael Key put their comedic skills to the test.

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

Ryan Stiles, Wayne Brady, Colin Mochrie and guest comedian Nyima Funk put their comedic skills to the test with U.S. Olympian Shawn Johnson.

Ryan Stiles, Wayne Brady, Colin Mochrie and guest comedian Greg Proops put their comedic skills to the test.

Ryan Stiles, Wayne Brady, Colin Mochrie and guest comedian Keegan-Michael Key put their comedic skills to the test.

Ryan Stiles, Wayne Brady, Colin Mochrie and guest comedian Jonathan Mangum put their comedic skills to the test.

Ryan Stiles, Wayne Brady, Colin Mochrie and guest comedian Jeff Davis put their comedic skills to the test.

Ryan Stiles, Wayne Brady, Colin Mochrie and guest comedian Jonathan Mangum put their comedic skills to the test with Kyle Richards of "Real Housewives."