S10 · E22

They Saved Lisa's Brain

1999-05-0923 min 6.9

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Overview

Mayor Quimby flees Springfield, leaving the town chapter of Mensa in charge. As the group's new power goes to their heads, they take their utopian plans too far and the townspeople revolt.

Guest stars

Stephen Hawking
as Stephen Hawking (voice)

Series cast

Dan Castellaneta
as Homer Simpson / Abe Simpson / Barney Gumble / Krusty the Clown / Groundskeeper Willie / Mayor Quimby (voice)

Julie Kavner
as Marge Simpson / Patty Bouvier / Selma Bouvier / Jacqueline Bouvier (voice)

Nancy Cartwright
as Bart Simpson / Maggie Simpson / Nelson Muntz / Ralph Wiggum (voice)

Yeardley Smith
as Lisa Simpson / Maggie Simpson (voice)

Hank Azaria
as Moe Szyslak / Chief Wiggum / Apu / Comic Book Guy / Carl Carlson / Superintendent Chalmers (voice)

Harry Shearer
as Ned Flanders / Mr. Burns / Smithers / Principal Skinner / Lenny Leonard (voice)

Crew

Matt Selman
Writer

Pete Michels
Director