Aired Friday December 29, 9:15am - 9:40amon Channel 4 +1

The Simpsons

Series 23 Episode 4: Replaceable You

Bart's science fair project, a mechanical baby seal, outshines Lisa's brainy asteroid model and becomes a popular pet among the retirement home patrons. Meanwhile, Homer gets a new and eager assistant named Roz, but when he quickly loses his job to her and discovers her evil past, he and Ned team up to reveal her true dark colours.

Category
Animated / Entertainment / Sitcom
Original air date
2011-11-06
Cast and crew
  • Mark KirklandDirector
  • Dan CastellanetaHomer Jay Simpson/Barney Gumble/Grampa Simpson/Mayor Joe Quimby/Krusty the Klown/Groundskeeper Willie
  • Julie KavnerMarjorie Bouvier Simpson/ Patty Bouvier/Selma Bouvier/Grandma Jackie Bouvier
  • Nancy CartwrightBartholomew Jo-Jo "Bart" Simpson/Nelson Muntz
  • Yeardley SmithLisa Marie Simpson
  • Hank AzariaMoe Szyslak/Apu Nahasapeemapetilon/Chief Clancy Wiggum/Dr. Nick Riviera
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