Which animated character is associated with the development of the show Yogi Bear?

The correct answer, Huckleberry Hound, is significant because he was one of the first animated characters created by William Hanna and Joseph Barbera that helped establish the Hanna-Barbera studio's reputation. The success of Huckleberry Hound laid the groundwork for the development of other iconic characters, including Yogi Bear, who premiered shortly after Huckleberry Hound in the early 1960s. The appeal of Huckleberry Hound's laid-back charm, coupled with his Southern drawl, made him a hit, allowing Hanna-Barbera to expand their universe of animated characters and storytelling styles.

While the other characters mentioned are well-known within the Hanna-Barbera franchise, they did not directly contribute to the creation or development of Yogi Bear. Fred Flintstone and Wilma Flintstone are characters from "The Flintstones," which aired later, and Boo-Boo Bear is Yogi Bear's sidekick, created as part of Yogi’s series. Therefore, Huckleberry Hound's character and the pioneering animation style he represented are integral to understanding the origins of Yogi Bear and the evolution of animated television during that era.