Lance

Lance is the leader of the Pokémon G-Men. In the past, he was a member of the Elite Four and was the Pokémon champion, but he is now full time director of the Pokémon G-Men Initiative.

Trivia

 * Being called "Captain Lance" by the other G-Men is a reference to Quentin Lance from Arrow.
 * Clair constantly calling Lance her cousin is a reference to how Kara does that with Clark in the Supergirl series.