watch 01:38 The Loop (TV) Do you like this video? Mark Seidenberg is a writer, producer, composer, and editor. He has worked for Hanna-Barbera, Marvel Productions, Disney, and Warner Bros. Animation. Crew credits TV series The 13 Ghosts of Scooby-Doo 102. Scoobra Kadoobra - story by External links Mark Seidenberg at IMDb Retrieved from "https://scoobydoo.fandom.com/wiki/Mark_Seidenberg?oldid=251290" Categories: The 13 Ghosts of Scooby-Doo writers Community content is available under CC-BY-SA unless otherwise noted.