Cupcake

Cupcake is role played by

About her
Cupcake is a girl from Burgess and she's friends with Jamie Bennett. At first she seems like a mean girl that everyone is afraid of, but thanks to Jack Frost and his magic snowball, she becomes everyone's friend.

By the end of the movie she helps Jamie and the Guardians against Pitch. She also believes in Jack Frost and the other guardians thanks to Jamie.

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, brown boots, pink striped tights, and a pink jacket. Her pajamas are a dark pink nightdress.

Personality
At first, Cupcake seems to be intimidating and mean, as the kids expressed fear of her wrath when she was accidentally hit by a snowball. However, after some magical encouragement from Jack Frost, she loosens up and becomes friends with Jamie and the others.

Cupcake is a brave and tough girl, shown best when she fearlessly stood up to Pitch and the nightmares. She displays a girly side as well, such as her fondness for unicorns and the colour pink.

Quotes

 * "Let's get `em!''
 * "...Nightmares''
 * "I will." to Pitch

Trivia

 * She is voiced by Dominique Grund.
 * Though not mentioned by anyone, Cupcake might be older than Jamie Bennett and the rest of his friends, which would explain her being bigger that the other kids.