The official website for talent agency Aoni Production just reported that veteran voice actor Unsho Ishizuka, who was represented by them, passed away from Esophageal cancer on August 13th, 2018 at age 68.

Ishizuka is primarily known for his roles as Professor Okido in the Pokémon anime series and as Dino F. Golzine in Banana Fish, but has a long resume of major roles. In the Pokémon anime, his biggest additional roles are those of the narrator, Adeku and principal Okido.

Source: Aoni Production, via Nijimen.net