Dean Hardscrabble

Dean Hardscrabble is the antagonist turned supporting character in 2013 Disney/Pixar's animated film Monsters University. She's a dark red dragon-like monster with millipede-like legs and red bat wings. She sees Mike Wazowski as a non-scary monster and made a bet with him and wants him to leave Monsters University.

Trivia

 * She shares similarities with Queen Elsa from Frozen. Both act as antagonists and later redeem themselves (even if they are not villains).