"Who?"This article about a member of the cast and crew would greatly benefit from the addition of a main image.Please upload a relevant image and place it here. Once finished, this notice may be removed. Michael O'Sullivan wrote the Guidebook to the Marvel Cinematic Universe. External Links Mike O'Sullivan on the Marvel Wiki Retrieved from "https://marvelcinematicuniverse.fandom.com/wiki/Michael_O%27Sullivan?oldid=888489" Categories: Imageless Cast & Crew Crew Writers Community content is available under CC-BY-SA unless otherwise noted.