Kaori Asoh

as Mikiko "Kuromi-Chan" Oguro (voice)

Koji Ishii

as Rei Takashimadaira (voice)

Reiko Yasuhara

as Hamako Shihonmatsu (voice)

Akemi Okamura

as Aoi Fukami (voice)

Eiji Itoh

as Mizuho Tanonaka (voice)

Kazuya Ichijo

as Seiichiro Haryu / Catman (voice)

Mayumi Misawa

as Mai Horaguchi (voice)

Yoshiro Matsumoto

as Hassaku Hozomi (voice)

Akitaro Daichi

as Studio Acohida's Production Assistant (voice)

Koji Ishii

as President (voice)

Makoto Yasumura

as Animator A (voice)

Masahito Yabe

as Makoto Kumegawa (voice)

Ichikawa Mieko

as Battobi (voice)

Rika Komatsu

as Yuri (voice)

Tatsuo Sato

as Yamitaro (voice)

Cho

as Nonki Hayama (voice)