Timmy Tibble and Tommy Tibble

Timmy and Tommy are the Two Twins from Arthur.

Counterparts

 * Bill and Ben (Thomas the Tank Engine and Friends/The Railway Series)
 * Zip and Zug (TUGS)
 * Mr. Bocco and Mr. Socco (Salty's Lighthouse)
 * Lemmy "Hip" Koopa and Iggy "Hop" Koopa (Super Mario Bros.)
 * Scratch and Grounder (Sonic the Hedgehog)
 * Big Gruesome and Little Gruesome (Wacky Races)
 * Booker and Sheldon (Garfield and Friends)
 * Rod and Todd Flanders (The Simpsons)
 * Thing One and Thing Two (Dr. Seuss)