Young Elvin Gadd

Young Elvin Gadd is the younger version of Professor Elvin Gadd that used to live on the foothills of the Thwomp Volcano and only appears in Mario & Luigi: Partners in Time.

The Mario Bros. save his lab from burning down from fire blocks erupted from the Thwomp Volcano. He helps the Mario Bros. by inventing the Hydrogush 4000 Although he doesn't directly invent the Hydrogush 4000, his older self does in a complex way. He starts to get an idea and transfers it to his older self causing Professor Elvin Gadd to send water from the Hydrogush 4000 via Time Hole and calm the erupting Thwomp Volcano.

He looks just like Professor Elvin Gadd except with black hair, no dimples, and no spots. His age is mystery, although it is assumed that he is in his twenties.