All the 8 gym leader of the Johto region from Pokemon:
1. Falkner (or Hayato) the master of flying pokemons. He gives you the Zephyr Badge after defeating him in Violet City. 2. Bugsy (or Tsukushi) the master of bug pokemons. After defeating him he gives you the Hive Badge in Azalea Town. 3. Whitney (or Akane) the master of normal pokemons in Goldenrod City. By defeating her, you receive the Plain Badge. I admit, her Milktank IS scary. 4. Morty (or Matsuba) the master of ghost pokemonsin Ecruteak City. Defeat him to obtain the Fog Badge. 5. Chuck (or Shijima) in Cianwood city who uses fighting pokemons. He gives the Storm Badge to those who managed to beat him. 6. Jasmine (or Mikan) who specialized to steel pokemons in Olivine City. By defeating her you can get the Minelar Badge. 7. Pryce (or Yanagi) from Mahogany Town the master of Ice pokemons. If you win he gives you the Glacier Badge. 8. The final leader Clair (or Ibuki) from Blackthorn Town. She uses dragon pokemons. Defeat her (and answer a lots of questions) in order to receive the Rising Badge and a dratini.