Geramon
From Tardis Wiki, the free Doctor Who reference
The Geramons were the natives of Beedle. They were compulsive practical jokers. They were ruled by an individual known as the High Japester.
When ruins were found on Beedle, both the Knyy'ds and the Mystic Wizards claimed possession, so representatives from both races, as well as an arbiter and Bernice Summerfield, came to Beedle. It was a hoax, however, as the High Japester wanted an victims for his practical jokes. When he was found out, he tried to leave the planet, but Demjely smuggled a nuclear bomb aboard his ship, and became the new High Japester. (PROSE: Beedlemania)