Dudley Dabble on the cover of Math Blaster Pre-Algebra.

Dr. Dudley Dabble is an evil mad scientist who lives in a mansion on an undisclosed planet. His archenemy is Rave, a kid who has spoiled his plans in the past. Dabble has appeared in the Reading Blaster games, as well as Algebra Blaster.

Dr. Dabble Wanted Poster

Wanted for "Grand Licensing and non-payment of electric bills".