The Man Who Grew Too Much

The Simpsons

S25E13
E13
March 9, 2014 ★ 6.4 22 min

Overview

During a research trip, Lisa learns that Sideshow Bob is the chief scientist at a big chemical engineering company; Marge tries to teach a teen church group about healthy sexual practices.

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Top Cast

Dan Castellaneta

Dan Castellaneta

Homer Simpson / Abe Simpson / Barney Gumble / Krusty the Clown / Groundskeeper Willie / Mayor Quimby (voice)
Julie Kavner

Julie Kavner

Marge Simpson / Patty Bouvier / Selma Bouvier / Jacqueline Bouvier (voice)
Nancy Cartwright

Nancy Cartwright

Bart Simpson / Maggie Simpson / Nelson Muntz / Ralph Wiggum (voice)
Yeardley Smith

Yeardley Smith

Lisa Simpson / Maggie Simpson (voice)
Hank Azaria

Hank Azaria

Moe Szyslak / Chief Wiggum / Apu / Comic Book Guy / Carl Carlson / Superintendent Chalmers (voice)
Harry Shearer

Harry Shearer

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

Guest Stars

Kelsey Grammer

Kelsey Grammer

Sideshow Bob (voice)
Marcia Wallace

Marcia Wallace

Edna Krabappel (voice)