I don't know if this is a permanent change, but Tominaga Miina
did the voice of Katsuo in yesterday's Sazaesan.
(It's very different from the original voice..)

I don't know if any of the Sazaesan cast will be remaining
until the end of its run..
--
Hitoshi Doi                                               Toshi Nibunnoichi
half a UFO catcher doll, half a cel          801 tactical training squadron
http://www.win.ne.jp/~doi/                                    doi@win.ne.jp