Cuddlezilla is Brendan's pet. Cuddlezilla lived in Kiki's barn, but apparently left with Sean Connery with hay in their mouths. It is presumed by some fans that one of the hamsters is female instead of male, and well, you know.
As of season 2, it is believed that Cuddlezilla and Sean Connery had baby hamsters and currently live under Kiki's old barn with their flourishing hamster community Dante had said (although they both may be deceased as hamsters only live for a short period of time). We also know that Cuddlezilla did NOT go with Brendan.
Cuddlezilla is a small light gray hamster with a lighter underbelly a pink nose with light pink feet and hands.
Not much is know about its personality, except for the fact that it cares for Brendan. Also it acts very cute.