Pokémon Diamond and Pearl Adventure!, Vol. 2Shigekatsu IharaPokémon: Diamond and Pearl Adventure!, book 2

Characters in Pokémon Diamond and Pearl Adventure!, Vol. 2

4 characters, main characters first.

Main characters

Hareta
Also in Pokémon Diamond and Pearl Adventure!, Vol. 1, Pokemon, Pokémon Diamond and Pearl Adventure!, Vol. 4

Antagonists

Cyrus
Also in Pokémon Diamond and Pearl Adventure!, Vol. 4

Supporting characters

Piplup
Also in Pokémon Diamond and Pearl Adventure!, Vol. 1
Byron