Cheerleader bear

3rd Grade Female Bear (Number 4) is an unnamed Mighty Mountain student who made her debut in the episode "The Pride of Lakewood". It is assumed that she is a third grader because she takes part in third grade competitions with her cheer squad. She has been seen in a cheerleader uniform as part of the Mighty Mountain's squad at track and soccer games, and only speaks to yell cheers with the other girls. Not much is known about her besides this.

Appearance
3rd Grade Female Aardvark (Number 11) is a bear with a light brown complexion and chocolate-colored curly hair. She has only been seen wearing her cheerleading uniform, which consists of a red dress with yellow along the neckline, bottom, and sleeves. There are yellow and black stripes along the waistline, and the letters "MM" (for Mighty Mountain) are displayed in yellow and black across the top. She also wears red tennis shoes with the uniform.

Arthur

 * Season 13
 * The Pride of Lakewood
 * Season 15
 * Nicked by a Name