Howell Wayneright

From Ben10versepedia

Howell Wayneright is obsessed with finding proof of alien life, so when he finds Grey Matter at a water park, he sees his ticket to fame. He inadvertently gives this ticket up when he turns Grey Matter over to The Organization, thinking that they'll help him spread the word. Instead, they decide to dissect Grey Matter and dispose of Howell. Howell, however, possesses enough of a conscience to find the dissection distasteful, and rescues Grey Matter as a result. When Grey Matter reverts back to human form while Howell isn't looking, he decides to give up chasing aliens. Howell appears in the episode "A Small Problem".