The official website for Ame-iro Cocoa in Hawaii has announced new cast and staff members for the upcoming sequel. Nozomu Tokura, Aoi Tokura's brother, will be the main character of the third season; he will be in charge of the Waikiki shop of the Rainy Color café. Cast members from first two seasons will also reprise their respective roles. The anime will broadcast in October 2, 2016 10:27 p.m. on and 10:28 p.m. on Tokyo MX.

Cast
Callaway Okamura: Toshiyuki Someya (Live-action Hakuouki SSL)
Shank Osman: Yuusuke Shirai (Binan Koukou Chikyuu Bouei-bu LOVE!)

Staff
Director: Kushi Ishii
Character Design, Illustration Director: Eri Tokugawa
Art Director: Kazuhiro Arai
Color Setting: Eiko Nishi
Film Director: Shin Ou
Plan Production: Ame-iro Cocoa Production Committee

Source: Official site