Mighty Mountain Player

3rd Grade Female Bear is an unnamed third grader who made her first appearance in the episode Arthur Makes the Team. She goes to Mighty Mountain Elementary School and is also on the Mighty Mountain Soccer Team. She usually is seen in episodes where Mighty Mountain is often seen competing against Lakewood most of the time in sports although there have been a contest one time.

Her personality is unknown, but she appeared to get along fairly well with Francine in the episode April 9th where she and Francine were thumb wrestling each other. This adds to the fact the rivalry between Mighty Mountain and Lakewood is just a sports rivalry and nothing more. She also spoke for the first time during the episode Nicked by a Name.

Other than that not much is known about her or anyone else at Mighty Mountain for the matter with Marina Dattilo being the exception.

Appearance
3rd Grade Female Bear is a bear with cream complexion who wears long orange pants, a white collared shirt with buttons, a blue vest, and blue and white sneakers. She also has long blonde hair wrapped in a ponytail with a red hair tie. In most of her appearances she along with her teammates are seen wearing their sports uniform.

Trivia

 * April 9th was the only episode where she is ever seen wearing her regular clothes and not a sports uniform.
 * Nicked by a Name is the only time she was ever heard speaking so far.