|Affiliations||The Royal Family of Udrogoth, Sorcery School|
|Siblings||Glimia (Sister), Throktar (Brother-in-Law)|
|First appearance||"The Maddening Sprite of the Stump"|
|Last appearance||"Happy Glasses"|
|Voiced by||Kevin Michael Richardson|
the uncle of main character Dave and his sisters, Fang and Candy.
He is a rather clumsy sorcerer who usually wreaks havoc with his spells rather than being useful. It was revealed in the episode Sorcerer Material (See List of Episodes) that he never really went to sorcerer school, he just worked in the cafeteria. Uncle Oswidge loves to eat and presents a rather unkempt appearance. Like his niece Fang, he secretly likes to play with dolls. His favorite foods are ham and "Nut Logs" and cannot resist them. His knowledge of magic and magical items, and most other things, surpasses the rest of the family.