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



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Episode cast overview:
Homer Simpson / Krusty the Klown / Groundskeeper Willie / Pop / Drunk #1 (voice)
Lisa Simpson (voice)
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)
Sideshow Bob (voice)
Masseuse (voice)
Beautician / Son / Aunt Gladys (voice)
Karl Wiedergott ...
Various (voice)
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)  »

Filming Locations:

Company Credits

Show detailed on  »

Technical Specs


Sound Mix:


(some sequences)|

Aspect Ratio:

1.33 : 1
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Did You Know?


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


When Frank Grimes, Jr. is running away on stilts his Mardi Gras cape falls off; in the next shot it is back, but is gone again immediately after. See more »


[Chief Wiggum reveals Sideshow Bob as the criminal who will help catch whomever wants Homer dead]
Lisa SimpsonBart Simpson: Ahhh! Sideshow Bob!
Sideshow Bob: Oh, come now. We've been through so much. Just call me Bob.
Lisa SimpsonBart Simpson: Ahhh! Bob!
See more »


Features The Simpsons: Homer's Enemy (1997) See more »


Alexander's Ragtime Band
Written by Irving Berlin
Performed by Dan Castellaneta
See more »

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User Reviews

Something Fun and Different for Sideshow Bob,
2 July 2010 | by (Ireland) – See all my reviews

The Great Louse Detective is a great Simpsons episode with a well written storyline and loads of very funny scenes. It's a very enjoyable episode that does something different and interesting with Sideshow Bob, all of his appearances on the show up to this one had him trying to kill Bart, but here we get to see him investigate who could have possibly tried to kill Homer, the scenes between the two of them are brilliant, particularly the part where Homer must show Bob what he would do on a "normal day". The only thing I don't really like about this episode is that Bob eventually tries to kill Bart at the end, I liked how they were finally giving the character something else to do, and I think if they hadn't thrown that in at the end it could have opened up more story lines of Bob doing something else for the family. The twist at the end brought a smile to my face, bringing Simpsons fans back to a classic episode and a fan favourite, it was a very interesting and unexpected turn. It may not be the best or most memorable moment for Sideshow Bob, but the Great Louse Detective is a very enjoyable and different Simpsons episode.

After a murder attempt on Homer, the police sign Sideshow Bob up to investigate, much to Bart's dismay.

3 of 9 people found this review helpful.  Was this review helpful to you?

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