At the end of Mushishi Special: Hihamukage, it was announced that a second season of Mushishi, titled Mushishi: Zoku Shou, will be airing Spring 2014. The staff and the main casts will remain the same as the first season.
The first season aired between Oct 2005 to Jun 2006.
Staff
Director/Series Script Supervisor: Hiroshi Nagahama
Character Design/Chief Animation Director: Yoshihiko Umakoshi
Art Director: Takeshi Waki
Music: Toshio Masuda
Sound Director: Kazuya Tanaka
Studio: Artland
Casts:
Ginko: Yuto Nakano
Narrator: Mika Doi
Source: Screenshot, twitter, official site, Anime! Anime!