watch 01:38 The Loop (TV) Do you like this video? Keef Bartkus is an editor, perhaps best known for his work on South Park. He has also worked on Teen Titans Go!. Crew credits Direct-to-video films Scooby-Doo! and WWE: Curse of the Speed Demon - edited by External links Keef Bartkus at IMDb Retrieved from "https://scoobydoo.fandom.com/wiki/Keef_Bartkus?oldid=238533" Categories: Scooby-Doo! and WWE: Curse of the Speed Demon crew Community content is available under CC-BY-SA unless otherwise noted.