The official website for the previously announced upcoming anime Gaikotsu Shotenin Honda-san has announced staff and additional cast members. Animated by DLE, the anime is slated for this fall. For convenience, the information released in June is also included below.

Staff
Director: Ouru Todoroki (Himitsukessha Taka no Tsume series direction)
Series Composition, Script: Shin Okashima (Gakusei Sensou: Soukyoku no Unmei manga scenario cooperation)
Character Design: Naoko Kakimoto (Giniro no Kami no Agito script)
Sound Director: Yuuichi Imaizumi (Brotherhood: Final Fantasy XV)
Sound Production: Half H.P Studio
Music: Technoboys Pulcraft Green-Fund (Mahoujin Guruguru (2017))
Music Production: Lantis
Animation Producer: Masahiro Satou (Stranger: Mukou Hadan animation director), Koutarou Yamawaki (Thermae Romae animation director)
Production Desk: Masahiro Satou
Production: Gaikotsu Shoten Honda-san Production Committee

Opening Theme Song: "ISBN ~Inner Sound & Book's Narrative~" by Technoboys Pulcraft Green-Fund feat. Honda (CV: Souma Saitou)
Ending Theme Song: "Book-end, Happy-end" by Technoboys Pulcraft Green-Fund feat. Hiroshi Takano

Cast
Honda-san: Souma Saitou (Sanrio Danshi)
Kamibukuro: Yuuko Sanpei (Captain Tsubasa (2018)
Houtai: Eri Kitamura (Fresh Precure!)
Lantern: Kimiko Saitou (Tokyo Ghoul:re)
Okitsune: Shizuka Itou (High School DxD series)
Koomite: Aya Endou (Queen's Blade series)
Rabbit Head: Kazutomi Yamamoto (Yume Oukoku to Nemureru 100 Nin no Ouji-sama: Short Stories)
Full Face: Hiroki Yasumoto (Megalo Box)
Gas Mask: Wataru Hatano (Dance with Devils series)
Yousetsu Mask: Toshiki Masuda (Marginal#4: Kiss kara Tsukuru Big Bang)
Kendou: Koutarou Nishiyama (Senjuushi)
Armor: Akemi Okamura (One Piece)
Pest Mask: Yoko Hikasa (Yama no Susume series)

Source: Moca News