# Whose Line Is It Anyway? (American TV series) season 18

The eighteenth season of the American television series Whose Line Is It Anyway? premiered on The CW on October 9, 2021, and concluded on April 9, 2022.

## Production

On May 25, 2021, it was announced that the series would air new episodes on Saturdays for a new season in October 2021. On June 15, 2021, it was announced that the new season would premiere on October 9, 2021.

## Cast
### Main

* Aisha Tyler
* Ryan Stiles
* Colin Mochrie
* Wayne Brady

### Recurring

* Heather Anne Campbell (two episodes)
* Keegan-Michael Key (two episodes)
* Jeff Davis (two episodes)
* Jonathan Mangum (two episodes)
* Nyima Funk (one episode)
* Greg Proops (one episode)

## Episodes

The "winner(s)" of each episode – as chosen by host Aisha Tyler – are highlighted in italics. The winner(s) perform a sketch during the credit roll, just like in the original British series.
| No. overall | No. in season | Performers | Special guest | Original air date | Prod. code | U.S. viewers (millions) |
| 370 | 1 | Wayne Brady, Heather Anne Campbell, Colin Mochrie, Ryan Stiles | Kevin McHale | October 9, 2021 (2021-10-09) | 1001 | 0.61 |
| Games performed: Let's Make a Date, Props, Forward Rewind, Three-Headed Broadway Star (w/Kevin McHale), Greatest Hits |||||||
| 371 | 2 | Wayne Brady, Jeff Davis, Colin Mochrie, Ryan Stiles | Laila Ali | October 9, 2021 (2021-10-09) | 1002 | 0.63 |
| Games performed: Get Down, Scenes from a Hat, Party Quirks, Hoedown, Duet (w/Laila Ali) |||||||
| 372 | 3 | Wayne Brady, Keegan-Michael Key, Colin Mochrie, Ryan Stiles | none | October 16, 2021 (2021-10-16) | 1003 | 0.61 |
| Games performed: Let's Make a Date, Sound Effects (with Audience Members), Forward Rewind, Greatest Hits |||||||
| 373 | 4 | Wayne Brady, Heather Anne Campbell, Colin Mochrie, Ryan Stiles | none | October 23, 2021 (2021-10-23) | 1004 | 0.42 |
| Games performed: Hollywood Director, Sound Effects (with Audience Members), Questions with Hats, Scenes from a Hat, Greatest Hits |||||||
| 374 | 5 | Wayne Brady, Nyima Funk, Colin Mochrie, Ryan Stiles | Shawn Johnson | November 6, 2021 (2021-11-06) | 1006 | 0.60 |
| Games performed: Weird Newscasters, Song Styles (w/Shawn Johnson), Forward Rewind, Scenes from a Hat, Greatest Hits |||||||
| 375 | 6 | Wayne Brady, Greg Proops, Colin Mochrie, Ryan Stiles | none | November 13, 2021 (2021-11-13) | 1010 | 0.65 |
| Games performed: Hollywood Director, Film Dub, Doo-Wop, Infomercial, World's Worst, Greatest Hits |||||||
| 376 | 7 | Wayne Brady, Keegan-Michael Key, Colin Mochrie, Ryan Stiles | none | November 20, 2021 (2021-11-20) | 1007 | 0.60 |
| Games performed: Weird Newscasters, Scenes from a Hat, Newsflash, Party Quirks, Greatest Hits |||||||
| 377 | 8 | Wayne Brady, Jonathan Mangum, Colin Mochrie, Ryan Stiles | none | January 8, 2022 (2022-01-08) | 1009 | 0.67 |
| Games performed: Let’s Make a Date, Radio Show, Scenes from a Hat, Greatest Hits |||||||
| 378 | 9 | Wayne Brady, Jeff Davis, Colin Mochrie, Ryan Stiles | none | January 15, 2022 (2022-01-15) | 1005 | 0.48 |
| Games performed: Let's Make a Date, Sound Effects (with Audience Members), Newsflash, Scenes from a Hat, Greatest Hits |||||||
| 379 | 10 | Wayne Brady, Jonathan Mangum, Colin Mochrie, Ryan Stiles | Kyle Richards | April 9, 2022 (2022-04-09) | 1008 | 0.57 |
| Games performed: Forward Rewind, Scenes from a Hat, Duet (w/Kyle Richards), Sound Effects (with audience members), Greatest Hits |||||||