Hitokage (ヒトカゲ)

In the anime, Charmander is one of Ash's first Pokémon. He took it in when it was wounded after wandering alone without its master Damian. The latter abandoned him because he found him too weak.
At Ash's side, the little Charmander made huge progress and evolved into a Charmeleon. But this evolution will drastically change his so jovial personality.

In Pokemon Mystery Dungeon, Charmander is a young rescuer teamed with Chikorita. He will ask Squirtle to join them to help other Pokemon.

(Source: Bulbapedia)