Polybus Arex
From Tardis Wiki, the free Doctor Who reference
Polybus Arex was a student of Bernice Summerfield who accompanied her on the expedition to Perfecton. He often referred to other students as "human scum".
While in the Pantoland, he assumed the persona of Moody, one of the seven dwarves. (AUDIO: Oh No It Isn't! [+]Loading...["Oh No It Isn't! (audio story)"])