When the retirement home closes, Marge invites Grampa and two other elderly folks to stay at the Simpsons' house. Nelson becomes Bart's friend, after Bart defends him for wearing used underwear.
Elenco:
Dan Castellaneta
,
Julie Kavner
,
Nancy Cartwright
,
Yeardley Smith
,
Hank Azaria
,
Harry Shearer
.