Where To Stream Whose Line Is It Anyway? Season 20 Episode 16
Alyson Hannigan
- Aired December 12, 2023
- 30 Min
- Rated 8.5
- Number 62 Of 196 Rated Episodes
Hosted by comedian Aisha Tyler, cast members Ryan Stiles, Wayne Brady and Colin Mochrie, along with guest Alyson Hannigan.