The Simpsons (1989– )
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The Great Louse Detective 

Homer has to use Sideshow Bob in order to track down a potential assassin.


Steven Dean Moore


Matt Groening (created by), James L. Brooks (developed by) | 4 more credits »

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Episode cast overview:
Dan Castellaneta ... Homer Simpson / Krusty the Klown / Groundskeeper Willie / Pop / Drunk #1 (voice)
Julie Kavner ... Marge Simpson / Patty Bouvier (voice)
Nancy Cartwright ... Maggie Simpson / Bart Simpson (voice)
Yeardley Smith ... Lisa Simpson (voice)
Hank Azaria ... Cat in the Hat / Turtle Masseur / Yoga Instructor / Chief Wiggum / Lou / Decapitating Harry / Palm Reader / Apu Nahasapeemapetilon / Cletus / Frank Grimes, Jr. / Moe Szyslak / Carl / Jester / Drunk #2 / Duffman / Frank Grimes, Sr. (voice)
Harry Shearer ... Kent Brockman / Tom Brokaw / Rainier Wolfcastle / Reverend Lovejoy / Lenny / TV Announcer (voice)
Kelsey Grammer ... Sideshow Bob (voice)
Pamela Hayden ... Masseuse (voice)
Tress MacNeille ... Beautician / Son / Aunt Gladys (voice)
Karl Wiedergott Karl Wiedergott ... Various (voice)
Sally Stevens ... Additional Vocals


A mystery assassin is out to kill Homer and,after several attempts,he consults Sideshow Bob who,as a would-be killer,understands the mind of a murderer and comes to stay with the Simpsons to expose the killer. After Homer is named Mardi Gras King and rides on a float his would-be murderer is exposed,as Junior,the son of Frank Grimes,the nuclear power plant employee for whose death Junior blames Homer. After Junior's arrest Bob resists the opportunity to kill a sleeping Bart as he is now so accustomed to him. Written by don @ minifie-1

Plot Summary | Add Synopsis


Animation | Comedy


TV-PG | See all certifications »






Release Date:

15 December 2002 (USA) See more »

Filming Locations:


Company Credits

Show more on IMDbPro »

Technical Specs


Sound Mix:

Dolby | Dolby SR (seasons 3-19)


Black and White (some sequences)| Color

Aspect Ratio:

1.33 : 1
See full technical specs »

Did You Know?


The title is a parody of Disney's "The Great Mouse Detective". See more »


On 11:40 Moe wished that he should have taken more photos of his broken jar. When we see the photos from a distance a photo at the Pyramids is at the bottom but when zooming it is replaced with a photo on the beach. See more »


Chief Wiggum: If I can tranq one freak on stilts, I know I've done my job.
Lou: You're living the dream
See more »


Spoofs That '70s Show (1998) See more »


The Way We Were
Written by Alan Bergman, Marilyn Bergman, Marvin Hamlisch
Performed by Sally Stevens
See more »

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User Reviews

A few good moments, but..
13 January 2017 | by magk-36213See all my reviews

Mostly tiresome and repetitive. Full of retreads and lame jokes repeated three times in direct succession in case you weren't paying attention, or are very slow.

I'm not going to repeat the plot description as so many people do. I've a feeling people do this just because IMDb requires so many lines of text in order to publish a review. Or maybe they just like typing. But I will say one thing :

Eps like this one help you appreciate the good years even more. Principally seasons 2-10. They don't spoil your love for the entire series. Just keep telling yourself this.

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