Iemasa Kayumi, the Japanese voice actor for Nefertari Cobra, passed away Sept. 30 at the age of 80. The official website for Kayumi’s company made a public announcement Oct. 8. The cause of his death has not been confirmed.

Besides Nefertari Cobra, some of his other roles include:

Skunk Kusai (Astro Boy – 1963)

Kyōsuke Mamō (Lupin the 3rd: Part I)

James Black (Case Closed)

Project 2501 / The Puppet Master (Ghost in the Shell)

Professor Rowan (Pokémon Diamond & Pearl)

Dr. Duran (Space Dandy)

Our condolences go out to his friends and family during this difficult time.