Title in English: Baian the Assassin
Episodes: 7 special episodes
Broadcast: from 1990-Dec-10 to 1993-Nov-06
Cast: Watanabe Ken, Isao Hashizume, Jun Miho, Hiroshi Abe, Kunie Tanaka
This 7-episode/special jidaigeki show was broadcasted on Fuji TV on Wednesdays at 20:00 from 1990 to 1993. Starring Watanabe Ken.
Thanks to saigo_x for the links.