Who is the Japanese voice actor for Grottomon?

The Japanese voice actor for Grottomon is Tomohiro Nishimura.

Which anime is Grottomon from?

Grottomon appears in Digimon Frontier.

In Digimon Frontier, Grottomon is listed as a supporting character.

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Grumblemon is the Legendary Warrior of Earth, using the power of AncientVolcamon Level: H-Hybrid His B-Hybrid is Gigasmon

Digimon Frontier

Digimon Frontier

Tomohiro Nishimura

Japanese

Derek Stephen Prince

English

Stefan Gossler

German

Yoram Yosefsberg

Hebrew

Paolo Marchese

Italian

Ivo Roberto

Portuguese (BR)

Juan Carlos Lozano

Spanish