Cheren is a childhood friend of the player who, like the player, lives in the starting town of Nuvema Town. While he holds a greater knowledge in Pokémon than his friends and tends to offer the player advice during the course of their journey, his comments are often witty and intellectual.
Whilst Professor Juniper describes him as being very honest, she also remarks that he can be 'a little difficult'; his impatience in particular is often seen throughout the earlier stages of his journey. He is also described as being quite judgmental by Alder.
The player will encounter and battle him several times throughout the game. After the main storyline, Cheren can be found inside Victory Road where he can be battled once a day.
In Black 2 and White 2, Cheren is the new Normal-type Gym Leader. He gives away the Basic Badge, replacing Lenora.
In the Be a Master!! Pokémon BW manga, Cheren is friends with both Monta and Bianca, he is very knowledgable about Pokémon, which Monta dislikes. He also appears in the Pokémon Adventures manga as a supporting character.
