
Quick answer — Masato Niwa voices Gaume in Made in Abyss: The Golden City of the Scorching Sun, Kenji Shimamoto in Hotel Inhumans.
Masato Niwa voices Gaume (Made in Abyss: The Golden City of the Scorching Sun), Kenji Shimamoto (Hotel Inhumans).
Gaume is voiced in Japanese by Masato Niwa.