Dufus

Dufus is the apprentice of the sorceress Temme in Farthing.

Meeting him in Ultima V, Dufus spoke of how he was really proud of being her apprentice, hoping to be a mighty mage one day. He mentioned that Temme knew many great spells, something that the Avatar would ask her later about. Also Dufus mentioned that Seggallion had an interesting Spyglass, with which he would study the stars at night, suggesting to ask the lord about it.

Ultima V: Lazarus
In the Ultima V: Lazarus version, Dufus' conversation was expanded, and he was caught in a mess he'd caused with Temme's equipment. The Avatar had the option to either help Dufus, or rat him out to Temme.