List of One-time The Simpsons Characters - Series Characters - Season 18

Season 18

• "The Mook, the Chef, the Wife and Her Homer"
  • Dante Calabresis (Joe Pantoliano) and Dante Calabresis Jr. (Michael Imperioli) are rival mobsters to Fat Tony.
  • Michael D'Amico (Tress MacNeille) is Fat Tony's son who becomes Lisa's friend. Michael has a gift for cooking, which he uses to poison his father's rivals and (presumably) breaks off his friendship to Lisa when he does not admit to poisoning his father's rivals. He was mentioned (by name only) earlier in "Moe Baby Blues" and "The Seven-Beer Snitch".

• "Jazzy and the Pussycats"
  • Skinny Turner (Harry Shearer) and Marcus Marbles (Hank Azaria) are two jazz musicians that let Bart in their band.

• "G.I. (Annoyed Grunt)"
  • The Army Colonel (Kiefer Sutherland) is Homer's somewhat psychotic army colonel, showing no regard to civilians lives or military laws (he invades Springfield without autorization).

• "The Wife Aquatic"
  • Billy (Maurice LaMarche), "Portuguese" Fausto (Hank Azaria) and the Skipper (Hank Azaria) are three members of the crew of the boat The Rotting Pelican. There are also five nameless ones, one of whom is voiced by comedian/Simpsons writer Dana Gould.

• "Little Big Girl"
  • Darcy (Natalie Portman), Bart's pregnant girlfriend in North Haverbrook who almost ropes Bart into marriage until she admits Bart is not the father.

• "Yokel Chords"
  • Dr. Stacey Swanson (Meg Ryan) is a psychiatrist who is assigned to treat Bart Simpson. They form a close bond, and after the last session, Swanson is forced to see another psychiatrist.
  • Dark Stanley a vengefull cook who suffers emotional bullying from students that taunt him for his ruined life, until he has a psychotic nervous breakdown and starts to serve the same students in his soup. Bart invents this history to scare the other students in order to get their lunches, and later revels that he gets the name from a hammer that Homer uses to spank him. However, it's later revealed that, somehow, Dark Stanley was real.
  • Withney, Dubya, Jitney (all voiced by Tress MacNeille), Incest (Dan Castellaneta), Crystal Meth (Nancy Cartwright), International Harvester (Cartwright), and Birthday (Pamela Hayden) are seven of Cletus Spuckler's children tutored by Lisa when Springfield Elementary School rejects them. Lisa then takes them on a field trip to Downtown Springfield where they all sing a song. Krusty sees them and briefly gets them to sing on his show.

• "Homerazzi"
  • Tabloid Editor (J. K. Simmons) hires Homer to be a paparazzo after Homer submits his photo of Duffman (who is supposedly in a committed relationship with another man) dating Boobarella. Tabloid Editor shares some of the characteristics of J. Jonah Jameson, a Spider-Man character whom Simmons portrayed in the Spider-Man movies.
  • Enrico Irritazio (Jon Lovitz) is a professional paparazzo that Rainier Wolfcastle hires to take incriminating photos of Homer. Enrico looks like Jay Sherman from The Critic who was in the season six episode "A Star Is Burns". Once called, "Beefaroni" by Rich Texan.

• "The Boys of Bummer"
  • Joe LaBoot (Hank Azaria) is a professional baseball player and loser of a World Series game.