Cupcake

Cupcake is a friend of Jamie Bennett. At first she seemed to be the kind of person that everyone was afraid of, but became everyone's friend after Jack Frost hit her with one of his snowballs. In the end, she joined the others in confronting Pitch in the Guardians' defense.

Appearance
Cupcake is a rather large girl, with brown hair cut past her ears, and brown eyes. She wears a black t-shirt, a pink tutu, pink striped tights, and a pink jacket. Her pajamas are a dark pink nightdress. Some may note her similarities to Eep due to having a similar built, strength, and facial expressions.

Personality
She started as a mean, intimidating kind of person; however, after Jack hit her with one of his snowballs, she becomes friendlier with the other kids. She is also tough, standing up to Pitch and his nightmares without a single expression of fear. She can be girly in her mannerisms as well; she is very fond of unicorns and using pink as her signature color.

Powers and Abilities
As a regular human being, she possesses no magical or supernatural abilities; but she is fairly muscular, as proven when she chased the other kids with a snowman's head in a snowball fight, meaning that she could provide strength and help to those closer to her when it is needed.

Role in the Crossover
She would mostly serve as an ally and supporter of the Four on Jamie's side. Her great strength would likely make her the muscle of his group.