Legendary Trainers: Ash, Blue, Red, Dawn.
Gym Leaders: Brock, Fantina, Misty, Lt. Surge.
Elite Four Bosses: Drake, Siebold, Koga, Karen.
Champions of League: Cynthia, Iris, Steven Stone, Lance.
This would let players make gyms and Pokémon Leagues more real and amazing.
Also to include Professors Oak, Rowan, Birch, Elm... to Doctor's box or to Chatting NPC's box would let players make labs like Pokémon games.