Whose Line Is It Anyway? (American TV series) season 20

The twentieth season of the American television series Whose Line Is It Anyway? premiered on The CW on March 31, 2023, and concluded on February 6, 2024.

Production
On January 23, 2023, it was announced that the new season would premiere on March 31, 2023.

Main

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

Recurring

 * Gary Anthony Williams (eight episodes)
 * Jeff Davis (seven episodes)
 * Keegan-Michael Key (two episodes)
 * Brad Sherwood (one episode)
 * Jonathan Mangum (five episodes)
 * Greg Proops (four episodes)
 * Nyima Funk (one episode)

Episodes
"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 UK series.