Susie is known for being rude, vulgar, as well as making sarcastic or brutally honest remarks. She can threaten with physical violence, such as biting off someone's face. In a Dark World, she is willing to attack Darkners if they are perceived as enemies.

However, Susie has a different temperament to those who are kind to her. With friends, she is expressive, willing to talk about herself, and ask for their opinions. Susie favors teasing her friends, and is more observant of their emotions.