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Dennis Looks Like a Registered Sex Offender

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"Dennis Looks Like a Registered Sex Offender" is the eleventh episode of the third season of It's Always Sunny in Philadelphia.

Dennis's life goes downhill when he finds out that a convicted sex offender whom he closely resembles has been released from prison due to overcrowding. Meanwhile, Mac and Charlie reunite with Mac's convict father.


3:30PM on a Tuesday

The Gang is affected when a local prison has to release a quarter of its inmates. Mac's dad is released and comes back into his life, while Dennis has to deal with resembling a released child molester.

Recurring Roles

Guest Stars

  • Connor McCoy as Timmy
  • Gary Kraus as Dad
  • Mary Ann Hermansen as Betty
  • Glenn Howerton as Wendell Albright
  • Bryan Birge as Police Officer
  • Katie McElhenney as Woman #1
  • Kathy Romano as Woman #2


  • "Lady" by Styx plays in Dennis' car and during the closing credits.
  • Dennis has a history of being called a "molester."
  • During the dinner, Charlie says to his mom "this might appeal to the whore in you!" he's still offended due to her old affair with Frank and unsuccessful abortion from "The Gang Finds a Dumpster Baby" earlier in season 3. But later, in season 6's "A Very Sunny Christmas", Charlie finds out that she was a prostitute for real.
  • Liquor stores in Pennsylvania are run by the state so no alcohol of any type is sold in a grocery store (as it is in California, where the scene was shot). Rob McElhenney points this out on the commentary.
  • Yes, that is Glenn Howerton in a fat suit. No, he is not in Horrible Bosses with Charlie Day.
  • The park scene appears to be filmed in Kenneth Hahn Park in Los Angeles.
  • This is the only time that one of the principal cast members plays a completely different person. (Glenn Howerton as Wendell Albright.) In other episodes, they'll play different versions of their usual characters (the 1776 versions of their characters in "The Gang Cracks the Liberty Bell") or different characters they create (like Charlie's "Greenman", Dee's various characters, like Martina Martinez and Taiwan Tammy, Frank's character "Dr. Mantis Toboggan", and Murtagh and Riggs in Lethal Weapon 5 and 6.)


Frank: Charlie, I need a woman. I need a woman to... to cook for me, and clean up after me, and somebody that will do everything I say.
Charlie: Well, that's just a maid. You want a maid?
Frank: Yeah, that's right, a maid. A maid I can bang.


Sex Offender00:41

Sex Offender

Parent Trap00:16

Parent Trap

Season 3 Episodes
  1. "The Gang Finds a Dumpster Baby"
2. "The Gang Gets Invincible"
3. "Dennis and Dee's Mom Is Dead"
4. "The Gang Gets Held Hostage"
5. "The Aluminum Monster vs. Fatty Magoo"
6. "The Gang Solves the North Korea Situation"
7. "The Gang Sells Out"
8. "Frank Sets Sweet Dee on Fire"
 9. "Sweet Dee's Dating a Retarded Person"
10. "Mac Is a Serial Killer"
11. "Dennis Looks Like a Registered Sex Offender"
12. "The Gang Gets Whacked (Part 1)"
13. "The Gang Gets Whacked (Part 2)"
14. "Bums: Making a Mess All Over the City"
15. "The Gang Dances Their Asses Off"

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