Elmo’s World is a colorful segment of Sesame Street that centers on Elmo and a small recurring “cast” of friends like Mr. Noodle, Dorothy the goldfish, and various talking objects in his crayon-drawn room. These characters help explore simple preschool topics (like balls, dancing, or families) in a playful, repetitive format designed for very young children.

Main recurring characters

  • Elmo – A curious, 3½‑year‑old red monster who hosts the segment, talks directly to the audience, and leads each exploration from his own room.
  • Dorothy – Elmo’s pet goldfish, who “wonders” about the topic of the day and appears in a small fishbowl, prompting Elmo to imagine answers.
  • Mr. Noodle – A silent, live‑action clownlike neighbor seen through Elmo’s window, who tries (and usually fails at first) to demonstrate simple tasks, letting children feel smarter as they “help.”

The Noodle family

  • Mr. Noodle (original) – Played by Michael Jeter, appearing as a friendly, bumbling adult who learns by trial and error and never speaks.
  • Ms. Noodle – Mr. Noodle’s sister, played by Kristin Chenoweth, who appears in some later episodes to join the slapstick demonstrations.
  • Miss Noodle – Another sister, played by Sarah Jones, expanding the Noodle “family” in episodes like “Helping.”
  • Additional Noodle brothers were later added and portrayed by performers including Daveed Diggs and Daniel Koren, continuing the same silent, physical‑comedy style.

Talking room and side characters

  • The Door – A talking door that Elmo opens when visitors arrive or when the show shifts to a new bit in the room.
  • The Shade – A window shade that pops up and down with comic timing, often introducing short film segments or gags.
  • Drawer – A desk drawer that bursts open with papers and objects, usually when Elmo calls for it, adding surprise and humor.
  • Computer – A talking computer that Elmo uses to “email” or “video chat” characters and kids to gather more information about the day’s topic.

Other Sesame Street friends who appear

  • While Elmo’s World is mostly self‑contained, familiar Sesame Street characters such as Cookie Monster, Big Bird, Oscar the Grouch, and Baby Bear sometimes appear in or around the segment across the broader show.
  • These guest appearances keep Elmo’s World connected to the larger Sesame Street universe while still keeping the focus on Elmo’s room and its recurring characters.

Why these characters matter

  • The simple, repetitive interactions between Elmo, Mr. Noodle, Dorothy, and the talking room objects are intentionally designed to match the attention span and understanding of toddlers.
  • Mr. Noodle’s constant “getting it wrong,” followed by trying again, models persistence and allows kids at home to feel confident because they usually know the answer before he does.

Information gathered from public forums or data available on the internet and portrayed here.