John Dragos is the new Gym Leader of Blackthorn City Gym in Johto. Not much is known of him yet but he is a mystery as he wears a strange mask and cape. He is a member of the Dragos clan which created the Dragons group.
When Hakel goes for his Plain Badge, he encounters John Dragos who blocks his entrance to the Gym. He seems to be playful and energetic and is a hit with the girls especially Whitney, the Goldenrod City Gym Leader. Despite John saying he was a Gym Leader of Blackthorn City, Hakel questions whether or not he was actually a Gym Leader. His abilities are currently unknown, although he seems to be well-respected.
Dratini is the first Pokemon shown to be part of John's team. Dratini went against Blaine's Arcanine in a battle of speed. Dratini, although extremely small, was able to completely overwhelm Blaine's Arcanine very easily.
Dragonite is the second Pokemon shown to be part of John's team. Dragonite went against Blaine's Entei and overpowered his Entei, winning John the match against Blaine. Despite being just a Dragonite, it was shown to have amazing abilities and this was shown from his victory against a legendary Pokemon such as Entei. Hakel Fury later stated that this is because he is the Blackthorn City Gym Leader so, it made sense that John's Dragonite would be able to defeat a legendary Pokemon such as Entei.