Caleb is a friends of Jamie Bennett and also the twin brother of Claude. He was a believer like his brother until he and his brother suffer nightmares from Pitch and they eventually stop believing in the Guardians but thanks to the help of Jamie and Jack Frost, they regain their faith. They took part in defeating Pitch and restoring Sandy's dream sand.
Caleb is good friends with Jamie but, like his brother, he is quick to mock Jamie's belief in supernatural creatures like Big Foot. He and Claude are also friends with Pippa and Monty, as evident by their snowball fight, and like the other children they were weary of Cupcake but were quick to let her take part in the fun, with some minor influence from Jack. The brothers are later seen taking part in an Easter Egg hunt at Jamie's house with the other children.
Caleb can be different from his twin brother, Claude, because he is always wearing a red beanie. At the beginning of the movie with their snowball fight, he is seen wearng a blue cloat, with a big, purple line through the middle, outlined with thin, white lines. He also wears a black shirt under it, as well as white shorts.
His pyjama's are seen as a red shirt, with a line of a lighter red through the middle, and black pants. He is also seen to wear an orange beanie with his pyjama's instead of a red one.