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Professor Küpkakke, also known as Professor Cupcake, is a recurring character featured in Dimension Film's Spy Kids: Mission Critical. He débuts, with his first appearance, in the second episode of the first season. He is voiced by starring cast member Tom Kenny.

He is the gadgets professor at the O.S.S Spy Academy.


Before Mission Critical

Küpkakke used to be the gadgets professor of both Ingrid Avellan-Cortez as well as Gregorio Cortez. Ingrid was one of two students who could run Küpkakke's Gadget Gauntlet, because she fell asleep in his class. He also presented Ingrid and Gregorio with the same special midterm he gave Carmen and Juni, their children.