Whose Line Is It Anyway?

The cast tackles a series of improv games; guests include comic Gary Anthony Williams and actress Lauren Cohan.

The cast tackles a series of improv games; guests include comic Heather Anne Campbell and actor Kevin McHale.

The cast tackles a series of improv games; guests include Keegan-Michael Key and Candice Accola.

TV personality Kyle Richards and comic Jonathan Mangum.

Comic Jeff Davis helps the cast with improv games.

Comic Gary Anthony Williams; actor Wilson Bethel.

Comic Heather Anne Campbell; former professional basketball player Lisa Leslie.

Actor Keegan-Michael Key helps the cast with improv games.

Former professional boxer Laila Ali.

Actress Maggie Q; guest comic Nyima Funk.

Comic Jonathan Mangum; Legends Football League players Chloe Butler and Monique Gaxiola.

Olympic gold medalist Shawn Johnson becomes a shower, a tree and a geyser as newlyweds Ryan and Colin visit Yellowstone Park. Nyima Funk shows off her many disconcerting tattoos.

Comic Nyima Funk; Olympic gold medalist Shawn Johnson.