The segments added several characters as friends of Slimer , including the character Professor Norman Dweebâ '' mad scientist accompanied by a poodle named Elizabeth who wanted to capture Slimer to experiment on him . The segments added several characters as friends of Slimer , plus an antagonist , Professor Norman Dweeb , a prototypical mad scientist usually accompanied by a pink poodle named Elizabeth . Dweeb wants to capture Slimer to experiment on him and to gain personal glory .