|First Appearance (Alisa's Adventures in Rockoland)||The New, the Old, and the Sleepy|
|Alisa's Adventures in Rockoland Portrayer||Mitch Urban|
- "Xiaoyu's eyes are closed and she's sleeping! That is not right!"
- — Groudon, after noticing that Xiaoyu fell fast asleep.
Groudon is the legendary Continent Pokémon. He has the power to scatter rain clouds and make water evaporate with light and heat. He came as a savior to people who had been suffering from terrible floods. He is one of Alisa Bosconovitch's friends.
Groudon never gets his way. This is because he thinks everything is wrong. An example of this is in his premiere episode, in which he said that Ling Xiaoyu was sleeping, and that was wrong.
Groudon's voice actor is Mitch Urban, who also voiced Yoshimitsu in Soul Calibur III.