Many of Pokémon's most interesting characters are gym leaders. Learn about some of the very best in this informative article!

Theory rank: 8/10 There may be more than 8 gyms, as Gary Oak shows badges not seen by Ash or Red. Theory rank: 9/10 Pokemon is a franchise that has been around for decades. First introduced in ...

Growing up, Ash had a constant companion in Gary Oak, the grandson of the famous Professor Oak. Once the two were old enough to become Pokémon Trainers, however, Gary's opinion of Ash became much ...