Pollux is a 17-year-old bobcat who stands 6' and weighs 170 lbs. He has the standard Felid abilities. His skills include martial arts, brawling, knife fighting, and unarmed combat.

Pietro Guillamo and his brother have been bounced through foster homes since the age of three. Pete responded by becoming moody, intense, and withdrawn, walling up his emotions. He relies only on his brother and mistrusts strangers. The pair have become a superb fighting team. Pollux was brought, with Castor, to Sanctuary by China.