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.
"Let's get `em!"
"...Nightmares." response to Claude's "That was a dream! You should be happy you still get dreams and not..."
"I will." to Pitch.
- 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.