Professor Von Schlemmer (Adventures of Sonic the Hedgehog)

Professor Dinglehopper Von Schlemmer is a brilliant, but eccentric and kooky scientist that has orange hair, brown eyes and green skin. When Sonic or Tails are in danger, they sometimes see him for a device which he invents that can stop Robotnik or find each other such as when Sonic was trapped in a temple in the episode Tails' Tale. However Professor Von Schlemmer sometimes forgets his name in a few episodes and asks himself who is he, which Sonic or Tails reply that he is Von Schlemmer. Some of his inventions include Gizmo Gas (makes an object grow), Dream-ma-ma-jig (can get dreams into the real world) and Portable Dream-ma-ma-jig (same as Dream-ma-ma-jig except smaller and looks like a night cap).

Professor Von Schlemmer is voiced by French Tickner.

In Boogey-Mania the invention of the Dream-a-majig gets the attention of Dr. Robotnik and he has him taken hostage. The professor refuses to turn his dream-a-majig into a nightmare machine. He cooperates after Tails is taken into custody and put in a cell. After he finishes the machine he is put in the same cell as Tails but released by Sonic. To get help in capturing Robotnik's nightmare monster, the Boogey Man, he invents the dream-kadoodle. It can put people in dreams. After they return from Dream World with a plan Von Schlemmer shows off his new invention, the porta dream-a-majig. This leads to a monster which successfully battles the Boogey Man and scares him back into Robotnik's head.