watch 01:52 The Loop (TV) Do you like this video? Diane Guerrero (born July 21, 1986) is an American actress and author. She portrayed Kay Challis in the Crisis on Infinite Earths crossover event. Contents[show] Credits DC's Legends of Tomorrow Actress Season 5 "Crisis on Infinite Earths: Part Five" Kay Challis (uncredited) Trivia Guerrero also portrays Kay Challis in Doom Patrol. Retrieved from "https://arrow.fandom.com/wiki/Diane_Guerrero?oldid=622210" Categories: Actors Guest stars Community content is available under CC-BY-SA unless otherwise noted.