Who is the Japanese voice actor for Keiichi Sumi?

The Japanese voice actor for Keiichi Sumi is Isshin Chiba.

Which anime is Keiichi Sumi from?

Keiichi Sumi appears in Junjou Romantica.

In Junjou Romantica, Keiichi Sumi is listed as a supporting character.

Keiichi Sumi appears in several anime, including Junjou Romantica, Junjou Romantica 2, Junjou Romantica 3.

Favorites

Misaki's senpai at university.

Junjou Romantica

Junjou Romantica 2

Junjou Romantica 3

Junjou Romantica

Isshin Chiba

Japanese

Julian Horeyseck

German