Some of the Japanese Simpsons cast is as follows.
(not sure if I got the English names correct from the katakana)

Simpsons
 Homer :: Oohira Tooru
 Marge :: Ichijou Miyuki
 Bert :: Hori Junko
 Lisa :: Koujirou Chie
 Moe :: Inaba Minoru
 Buffy :: Suzuki Reiko
 Collette :: Inoue Kikuko
 Herb :: Yanada Kiyoyuki
 Nelson :: Anzai Masahiro
 Crusty :: Shimada Bin
 Lionel Hearts :: Ishimaru Hiroya
 Kent Blockman :: Ito Hiroshi
 Gwinbee :: Tsuji Shinpachi
 Jenny :: Mashiba Mari
 Martin :: Adachi Shinobu
 Barney :: Hirose Masashi

--
Hitoshi Doi, Toshi Nibunnoichi                                  doi@tcp.com
half a UFO catcher doll, half a cel          801 tactical training squadron
http://www.tcp.com/doi/doi.html                             toshi@win.or.jp