Details
Mail from forty years earlier is discovered, and a letter from Homer Simpson's mother's old boyfriend states that he is Homer's true father. Homer sets out to find his supposed new father, leaving Abe behind.
- Family, Animation, Comedy
- English
Cast & Crew
- Dan Castellaneta , Julie Kavner , Nancy Cartwright , Yeardley Smith , Hank Azaria , Harry Shearer
- Matt Groening
- Matt Warburton, Joel H. Cohen, Ron Hauge, Richard Sakai, Tom Martin, Julie Thacker, Steve Tompkins, Dan Greaney