Doctor Griffin

Doctor Griffin (a.k.a. The Invisible Man) is a scientist.

History
An episode of The Bumblebee Man's Show is about the Invisible Man with blue pants.

Non-canon
The Invisible Man was one of the character that hunted the Springfielders.

Behind the Laughter
Doctor Griffin (a.k.a. The Invisible Man) is a fictional character from the, written by in 1897.