Professor Elvin Gadd

Professor Elvin Gadd, or shortened Prof. E. Gadd, is the scientist and the founder of Gadd Science Inc. and he is one of the NON-PLAYABLE allies in VanossGaming's Adventure 3: Vanoss' Mansion. He lives in the horror mansion in Boo Woods with several friendly ghosts, including Booky, one of the species of Boos with a cap onto his head and who never hurts anyone. He is also the one helping VanossGaming and Mini Ladd trapped in the mansion to find their freedom.

In his official characteristic, he first appeared in the first horror and action game for the Nintendo GameCube, Luigi's Mansion.