Rapty

Rapty is Bud Compson's stuffed dinosaur and imaginary friend, first seen in "Based on a True Story." When Bud imagines Rapty as a talking dinosaur, he imagines the toy getting larger and turning into a full-size dinosaur.

He speaks in a somewhat deep voice and provides encouragement to Bud when he's feeling down, but he doesn't always get Bud's jokes.

Arthur

 * Season 16
 * Based on a True Story
 * Read and Flumberghast
 * Season 17
 * Adventures in Budylon
 * Ladonna Compson: Party Animal
 * Season 18
 * D.W. & Bud's Higher Purpose
 * The Tattletale Frog
 * Season 20
 * Bud's Knotty Problem
 * Season 21
 * The Lost Dinosaur

Trivia

 * He appears to be a parody or inspired by Barney because, much like Barney, he's a stuffed animal but once kids imagine him, he's big, but Rapty isn't childish like Barney.