Dean is the younger brother of Alex. He is an aspiring Pokémon Trainer. He takes the boat back to the mainland from Cinnabar Island along with Ryan, Kelly, Rahul in chapter 10 of A Just Edge. After Pinkbeard the Pirate attempts to hijack the boat, Dean saves the day by deploying his Mega Magikarp and singlehandedly defeating the Pirate and his Pirate Pokémon Crew. Once they reach the mainland, Dean accompanies Ryan and the gang to Pallet Town, since it is almost dark when they arrive and they needed to find a good place to stay for the night.