But his story of getting the job of Donatello also shows how humble he is. When he got called in for the audition, his response was "uh, do they know who I am?" Not from ego, but because he didn't want to waste their time and fully expected them to Google his name, see the previous casting credit, and go "oh, shoot, sorry to waste your time." I guess it's really rare for anybody who isn't Frank Welker to be invited back to do a voice in more than one iteration of the series, since directors want to "make it their own." Once he went in and they said, "yes, we know who you are, but we want you anyway" he was flabbergasted.
He was also pretty big in making sure the "new guys" (Sean Astin and Jason Biggs) were prepared for the impact they were going to have on the lives of so many kids. His stories of meeting children and adults and doing the voices at mean so much from their childhoods tear me up inside every time.