According to this recent edit
to Kappei-sama's Japanese Wikipedia article
suggests he had at least a small role in the Mezon Ikkoku
anime.In case it wasn't a vandal edit
(unlikely since it was by a register user),hopefully it was before
Ibuki Yagami was introduced(or it least in an episode without that character)for obvious reasons
Happy birthday to Shigeharu Matsuda(who turns 57)and Youko Teppouzuka(who turns 45)...