Doreen Green/USM

Doreen Green, aka Squirrel Girl, is a fictional animated television superhero based on the Marvel Comics character of the same name. She made recurring appearances on the Ultimate Spider-Man cartoon series. She first appeared in "Sandman Returns" from from season two in 2013.

Biography
Squrriel Girl's name could be seen on one of the news tickers promoting her new line of perfume.[1] Later, when Spider-Man checked if he was still the number one superhero in New York, he's shocked to find himself listed on the 15th place of a poll and behind Dazzler, Hawkeye, Nova and Squirrel Girl. While he knows Hawkeye and Nova, he wonders who Squirrel Girl is.

She tries to stop Juggernauts rampage with her Squirrel Army, which she succeeds but however, with collateral damage to the streets, where Spider-Man swings in and scolds at her for so, saying it doesn't make her a hero.