Bugs Bunny is a very famous cartoon character. He is known to be the primary rivaling cartoon character of Mickey Mouse. Bugs is also known to be in some Looney Tunes shorts with Elmer Fudd, Yosemite Sam, Wile E. Coyote, etc. Bugs is very well known for his catchphrase "What's up doc?" it is one of the most popular cartoon character catchphrases of possibly all-time. Bugs is usually shown to be one of the main characters of Looney Tunes and it seems he is one of the most popular Looney Tunes character as well.