Tamarin is an Emperor Tamarin, a New World monkey species distinguished by its prominent, long white whiskers that frame the mouth. Hailing from the tropical forests of Peru, this character measures about 25 centimeters in body length, not including the tail, and has a weight ranging from 300 to 400 grams. A notable physical capability is its use of sharp nails for climbing vertically up trees.

This character is one of several unique animal companions met by the protagonists, each inspired by real rare animals and defined by their distinctive appearances or special biological traits.