watch 01:18 The Loop (Movies) Do you like this video? Luke Roessler portrayed Cereal Kid in Deadpool 2. Trivia He also portrayed David Haller from ages 6 to 8 in Legion. He also portrayed a young boy in Arrow. He also portrayed a boy in Supergirl. External links Luke Roessler on IMDb Retrieved from "https://xmenmovies.fandom.com/wiki/Luke_Roessler?oldid=94446" Categories: Actors Deadpool 2 Actors Actors with Roles in Comic Book Adaptations outside the X-Men Film Universe Community content is available under CC-BY-SA unless otherwise noted.