Harry's starter was Chimchar, who evolved into an Infernape after 2 years. He became a trainer at 12 years old.
His strongest and favorite pokemon is Infernape, but his dream pokemon was a Cyndaquil which he caught at 15 years old. It hasn't evolved since and he still doesn't know why... His main fighting Pokemon are Infernape, Charizard, and Arcanine. Cyndaquil, Simisear, and Vulpix are more like his pets. He specializes in fire type pokemon.