Daiki Nakamura (中村 大樹, Nakamura Daiki) is a Japanese voice actor affiliated with 81 Produce. Some of his best-known works include Gaine in The Brave Express Might Gaine and Grandpa in Grandpa Danger. Daiki Nakamura (中村 大樹, Nakamura Daiki) is a Japanese voice actor affiliated with 81 Produce. Some of his best-known works include Gaine in The Brave Express Might Gaine and Grandpa in Grandpa Danger.