- Dan Castellaneta (Homer Simpson / Abe Simpson / Barney Gumble / Krusty (voice))
- Julie Kavner (Marge Simpson / Patty Bouvier / Selma Bouvier (voice))
- Nancy Cartwright (Bart Simpson / Nelson Muntz / Ralph Wiggum (voice))
- Yeardley Smith (Lisa Simpson (voice))
- Hank Azaria (Moe Szyslak / Chief Wiggum / Apu / Comic Book Guy / Carl (voice))
- Harry Shearer (Ned Flanders / Mr. Burns / Smithers / Skinner / Lenny (voice))
The Simpsons — S11E2
Episode: Brother's Little Helper
Air Date: 1999-10-03
Runtime: 23 min
Overview
When Bart commits an extremely destructive prank, he is given Focusyn, a pill to help him concentrate in school. At first the results are impressive, and then Bart starts believing in a conspiracy involving spy satellites and major league baseball.