Mizuki Nishimura is a Japanese comedian and voice actor, recognized as one half of the comedy duo Viking alongside Eiji Kotoge. Born on April 23, 1977, in Hiroshima Prefecture, his career in entertainment is primarily rooted in comedy, but he has taken on several notable acting roles in both live-action and voice-over work for anime and film.

Nishimura has appeared in the Crayon Shin-chan film series. In the 2025 animated feature Eiga Crayon Shin-chan Chō Karei! Shakunetsu no Kasukabe Dancers, the thirty-second installment in the franchise, he voiced the role of a part-time worker at a general store. The character is described as a modern youth who is uninterested in his job and constantly focused on his smartphone. Regarding this role, Nishimura has shared that having a child motivated him to pursue voice acting in a project that his kid would enjoy.

In the realm of live-action adaptations of anime, Nishimura portrayed Yoshiki Takarada in the 2023 television series Wave, Listen to Me! (Nami yo Kiite Kure). His character serves as the manager of a restaurant called Voyager, a central location in the show's plot. Beyond these projects, he has had acting roles in other Japanese television series, and his broader career includes hosting his own camping-focused program and winning the King of Conte comedy competition in 2012 as part of Viking.