Dr. Cat, from Ultima VI
In Ultima V, Dr. Cat hadn't much to say, only offering the usual services of his establishment.
In Ultima VI, he claimed he once had a bet with Taynith on whether or not he could catch a duck with his bare hands. He won this bet and decided to tie the duck on a string and keep it with him. He also challenged the Avatar to a game of whim. Dr. Cat is searching for a copy of 'Snilwit's Big Book of Boardgame Strategy', and will offer the Avatar 200gp for retrieving the book. Talking longer with him also revealed him as a friend of Kytyn who lives in Britain and the bard Mandrake. When asked about the gypsies, Dr. Cat seemed quite fond of Zoltan's travelling band, but has a great dislike for the group north of Trinsic.
Ultima V: Lazarus Edit
In the Ultima V: Lazarus version, Dr. Cat is a much more detailed character, getting the Avatar on the track of the horrible fate of a girl named Kitten and the faults of her would-be suitor.