In his nearly three-hour Archive interview, Dan Castellaneta talks about his work as an ensemble player on The Tracey Ullman Show, and his greatest claim to fame as the voice of "Homer Simpson" on The Simpsons, for which he has won several Emmy awards. He discusses other characters he portrays including "Barney Gumble," "Mayor Quimby," "Groundskeeper Willie," "Grampa Simpson," and "Krusty the Klown." He discusses specific episodes including "Mr. Plow," "Who Shot Mr. Burns?" and the origin of Homer's famous catchphrase, "D'oh!" Jenni Matz conducted the interview on July 20, 2010 in North Hollywood, CA.