***Spoiler warning: 
If you don't know who a character is, don't read their profile! I try to tell as much about a character, without spoiling any details. However, some people like to be completely surprised.  

Neo Trainers  

Ash Lee Ketchum 
Tony Ketchum (Ashton II) 
Terra Slate 
Chad Mihana 
Anya Oak (Anastasia) 

Neo Team Rocket 

The Boss 
Bonnie 
Clyde 
Meowthy

Gym Leaders 

Pewter City - Ricky Slate 
Cerulean City - Aquata Norris, Oceana Norris, Nerisa Norris 
Saffron City - Sabrina 
Celadon City - Corri & Carri Mihana 
Coral City - Charista Javenson 
Fuschia City - The Samurai 
Cinnibar Island - Flara Starr (The Firestar) 
Vermillion City - Danny & Sammy Surge 
Viridian City - Unknown