Grand Blue A college student joins the local diving club after meeting some rowdy upperclassmen. New adventures in booze and the ocean await. Details Casts Galleries Posters Season Lists Title Grand Blue Genres Animation Comedy First Air Date 2018-07-14 Last Air Date 2018-09-29 Episode Runtime 00 Hours 24 Minutes Total Season(s) 1 Total Episode(s) on All Seasons 12 Runtime 24 Production Companies Zero-G, NBCUniversal Entertainment Japan, Saber Links Yuma Uchida... Iori Kitahara (voice)... Ryohei Kimura... Kōhei Imamura (voice)... Chika Anzai... Chisa Kotegawa (voice)... Kana Asumi... Aina Yoshiwara (voice)... Toa Yukinari... Azusa Hamaoka (voice)... Maaya Uchida... Nanaka Kotegawa (voice)... Katsuyuki Konishi... Ryūjirō Kotobuki (voice... Hiroki Yasumoto... Shinji Tokita (voice)... Original Size (1920x1080) Original Size (1280x720) Original Size (1280x720) Original Size (1920x1080) Original Size (1920x1080) Original Size (1364x2046) Original Size (1379x2048) Original Size (2000x2667) Original Size (1379x2048) Original Size (680x1000) Original Size (562x750) Original Size (1000x1500) Original Size (916x1280) Original Size (1039x1500) Original Size (1000x1426) Original Size (1000x1426) Original Size (1000x1500) Original Size (740x1110) Original Size (2000x2666) Original Size (2000x3000) Original Size (2000x3000) Season 1 12 Episode(s) 2018-07-14