Whose Line Is It Anyway? (American TV series) season 13

The thirteenth season of the American television series Whose Line Is It Anyway? premiered on The CW on May 29, 2017, and concluded on September 28, 2017.

Main

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

Recurring

 * Jonathan Mangum (four episodes)
 * Jeff Davis (three episodes)
 * Gary Anthony Williams (three episodes)
 * Heather Anne Campbell (two episodes)
 * Brad Sherwood (two episodes)
 * 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 UK series.