Professor Elvin Gadd

Professor Elvin Gadd is a non-playable character in a number of Mario games. He he's a incredible inventor and the head of Gadd Science Inc. He speaks in an unrecognizable babble of a language.

Games
He made his first appearance in Luigi's Mansion, in which he introduces Luigi to the problem of the ghosts in the mansion and gives him the Poltergust 3000 to enable him to rescue his brother, Mario. The professor has another fairly minor role in the story of Super Mario Sunshine, where E. Gadd invents the FLUDD for Mario's use in cleaning up Isle Delfino, which was caused when Shadow Mario obtained the professor's magic paintbrush. From Mario and Luigi: Superstar Saga, he's the owner of the Starbeans Cafe in Beanbean kingdom. If Mario collects enough beans for the coffee maker, he would test the coffee and give his inventions to Mario, one at a time. In Mario &amp; Luigi: Partners in Time, he's the inventor of the time machine that led to the capture of Princess Peach. The younger E. Gadd can be found in the past, after helping him he said something about going to a haunted mansion.

Inventions
Gadd Science Inc. has developed many inventions and tools over the years. Among which are:
 * The Poltergust 3000 - A high powered vacuum used to suck up ghosts, which Luigi uses
 * F.L.U.D.D. - The Flash Liquid Ultra Dousing Device. A water cannon with Artificial Intelligence, which Mario uses.
 * Magic Paintbrush- A tool Shadow Mario&#160;used to frame Mario by painting graffiti all over Isle Delfino.
 * The Gameboy Horror- A parody of the "Gameboy Color", this was a machine that had&#160;a map Luigi could use to navigate the mansion.