"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 "Mike" O'Sullivan was the head writer and coordinator for Guidebook to the Marvel Cinematic Universe. External Links Mike O'Sullivan on Marvel Database Retrieved from "https://marvelcinematicuniverse.fandom.com/wiki/Michael_O%27Sullivan?oldid=1244706" Categories: Imageless Cast & Crew Crew Book Authors Community content is available under CC-BY-SA unless otherwise noted.