Professor E. Gadd

Professor Elvin Gadd, also known as Professor E. Gadd, or E. Gadd (for short) is a major character in the CKToons series. He's a scientist and owns a lab in the Mushroom Kingdom called E. Gadd Laboratories.

E. Gadd is an experienced scientist with knowledge in various areas, which can help out Mario and Luigi in multiple situations.

In the Super Mario franchise, E. Gadd made his debut in Luigi's Mansion for the Nintendo GameCube. He's made his appearance throughout the rest of the series as well as some of the installments in the Mario & Luigi games (Superstar Saga, Partners in Time, and Superstar Saga + Bowser's Minions).

In TOLG cannon, while appearing in many episodes of CKToons, he's shown to be very smart as he's skilled in and invented a lot of machinery. However he can be idiotic, just like the rest of the CKToons cast.