Derek is the mystery man of The Tom Green Show. He is one of Tom's good friends, yes. But instead of being a co-host, Derek Harvie is a writer for the show. Not much os known about him, really. The only time I've actually seen him on the show was on the episode where Glenn tries to play a trick on Tom by burying his mixing board, and Tom throws Glenn's clothes out of a plane overhead. I have reason to believe that Derek was the one who informed Tom of Glenn's scheming against him. Naughty Derek. Poor Glenn.