
Ryusei Nakao is a Japanese actor and voice actor, affiliated with 81 Produce, who voices the anime's very first villain, Vaccine Man, in the opening episode of One Punch Man.
Nakao provides the voice of Vaccine Man, the towering, poison-spewing monster who serves as Saitama's opponent in the very first episode of One Punch Man. The fight sets up the show's signature joke: an overwhelming threat dispatched in a single punch. Nakao's history voicing sadistic, high-pitched villains made him a natural fit for the role, even though the character's screen time is brief.
Performing under the stage name Ryusei Nakao since the 1950s, the actor born Tomoharu Takeo is best known across generations of Japanese television for playing Baikinman in the long-running children's series Soreike! Anpanman. Dragon Ball fans recognize him as the voice of Frieza, along with related characters Cooler, Chilled and Frost, while he has also voiced Mayuri Kurotsuchi in Bleach and Caesar Clown in One Piece. His trademark high-pitched, menacing delivery has defined a career built largely around villains.

Naruto vs Luffy with the twist nobody asked for: Luffy tickled Hinata on date night, and she kind of liked it. We break down the whole fight and commit to a winner....

There are no women on Namek. That isn't an oversight, it's the biology. Why we handed Piccolo the one thing his own species rules out, and why it had to be trap soul....
No, Ryusei Nakao, the Japanese voice actor who plays Frieza in Dragon Ball, is still working. He has been active since 1954 and continues performing today, including voicing Vaccine Man in the first episode of One Punch Man.
Nakao voices Vaccine Man, the towering, poison-spewing monster that Saitama defeats in the very first episode of One Punch Man. The fight sets up the show's signature joke of an overwhelming threat dispatched in a single punch.
Nakao is best known for playing Baikinman in the long-running children's series Soreike! Anpanman, a role he has performed under his stage name since the 1950s. Dragon Ball fans also recognize him as the voice of Frieza and related characters Cooler, Chilled and Frost.
Beyond One Punch Man and Anpanman, Nakao voices Mayuri Kurotsuchi in Bleach and Caesar Clown in One Piece. His trademark high-pitched, menacing delivery has defined a career built largely around villain roles.
Nakao is affiliated with the talent agency 81 Produce. He was born Tomoharu Takeo in 1951 and has performed under the stage name Ryusei Nakao since the 1950s.
This content is original writing by Daddy Jim Headquarters based on the One-Punch Man anime series, manga, and official materials. One-Punch Man was created by ONE and Yusuke Murata, published by Shueisha, and animated by J.C.Staff and Madhouse. All rights to One-Punch Man and its characters belong to their respective owners. Episode and chapter references are cited where applicable.
Rights holders
All rights belong to their respective owners.
Character and scene imagery on this site is original artwork by Daddy Jim Headquarters, not screenshots or licensed imagery. Official cover art is used on three types of pages for editorial commentary:
Official resources:
Daddy Jim Headquarters maintains this encyclopedia. If you spot an error, a translation issue, or something that doesn't look right, let us know.