I ran an NPC golden cat that could speak and cast spells like a cleric. It was interesting. The players actually liked having that character around.
I read some Greyhawk novels that featured a ranger, a pixie or sprite, a hellhound pelt, and a talking badger named Polk. The badger was originally human, but he was killed and reincarnated by druids into a badger. His character was amusing.
Things that occurred to me about Sir Bearington:
- He may have strong opinions on honey tariffs
- He may be fond of pic-i-nic baskets
- He should have an honorary rank of Major
- He REALLY needs to talk to his Dutch relatives about his share of the diamond business