watch 01:32 The Loop (Movies) Do you like this video? Daniel Gerson voiced Needleman and Smitty in Monsters, Inc.. He was also the voice behind the Biggest Fan in Monster Truck Mater. Retrieved from "https://pixar.fandom.com/wiki/Daniel_Gerson?oldid=129526" Categories: Monsters, Inc. Actors Cars Toons Actors Community content is available under CC-BY-SA unless otherwise noted.