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THE SIMPSONS · SEASON 17 · EPISODE 21

The Simpsons S17E21 The Monkey Suit

★ 8.2 · GREAT May 14, 2006 30 MIN FOX 7 GUEST STARS
Still from The Simpsons S17E21: The Monkey Suit

The episode in brief

After visiting an evolution exhibit narrated by guest star Griffith, Flanders pushes Mayor Quimby to appoint Reverend Lovejoy as a "Mortality Czar" in charge of spreading the theory of creationism. Darwin's theories are quickly outlawed and Lisa finds herself as the only supporter of the scientific theory. After holding secret evolution classes, Lisa is arrested and retains Southern lawyer Wallace Brady to help defend her beliefs in front of a judge. While Flanders is on the stand in court, Homer's antics cause him to crack under pressure and he calls Homer an ape, which leads the judge to believe Homer resembles the missing link - putting a monkey wrench in the prosecutors' case. Blackboard: 'Je ne parle pas Francais'.

FAN DESK VERDICT A top-shelf entry. Not quite canon, but you’ll be quoting it all week — the fan desk says don’t skip.

Snapshots

2 STILLs
STILLS VIA TMDB

Who’s in it

GUEST STARS
SERIES REGULARS

Behind the camera

DIRECTED BY Raymond S. Persi
WRITTEN BY J. Stewart Burns

Where it sits in the season

TAP A BAR TO JUMP

Where to watch S17E21

US · NOVEMBER 2026
AVAILABILITY IS FOR THE SHOW; NOT EVERY SERVICE CARRIES EVERY EPISODE · LINKS MAY EARN US POPCORN MONEY
8.2
THE FAN VERDICT
Keeper. Goes straight in the rewatch rotation.

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S17E21 FAQ

When did The Simpsons S17E21 air?

The Simpsons S17E21 (“The Monkey Suit”) first aired on May 14, 2006.

Where can I watch The Simpsons S17E21?

In the US, The Simpsons season 17 — including this episode — is available on FX, Hulu, Disney+, fuboTV, DirecTV On Demand, Spectrum On Demand, YouTube TV, FOX One Amazon Channel, Hulu on Disney+, Amazon, Fandango at Home, and AppleTV.

Who guest stars in The Simpsons S17E21?

Guest stars include Karl Wiedergott ((voice)), Larry Hagman (Wallace Brady (voice)), Maggie Roswell (Miss Hoover / Helen Lovejoy (voice)), Melanie Griffith (Melanie Griffith (voice)), and Pamela Hayden (Milhouse Van Houten / Rod Flanders / Janey Powell (voice)).

Who directed and wrote The Simpsons S17E21?

The Simpsons S17E21 (“The Monkey Suit”) was directed by Raymond S. Persi and written by J. Stewart Burns.

Is The Simpsons S17E21 a good episode?

Fans rate The Simpsons S17E21 (“The Monkey Suit”) 8.2/10, which puts it in the great tier for The Simpsons.