Casper's dragon Science teacher who thinks sweat is "scare juice". His name is a play on words for "Third-degree burns" which are caused by fire or intense heat, which he is able to breathe at will. He has a tendency to bark untrue facts about "Fleshies" (the creatures' word for humans), which Casper politely tries to correct, which only aggravates Burns.
Professor Burns seems to get along with Alder and Dash since he even made a sweater for them. ("Slugby")