Bitters

Young, brash, short-tempered, bossy; Bitters isn't everyone's first choice as a caretaker for the pack's older pups - but perhaps this was done on purpose. He may not keep the closest eye on the kids, but this allows them to push their boundaries, explore in their own ways, and give them a little rebellious satisfaction as they take their risks and go on their small adventures.

Bitters himself doesn't seem to realize he's essentially being used, but he doesn't resent his job, either. He doesn't consider it very difficult, and likes the security of the Hide, being a bit of a homebody.