Nao
Iwasaki Nodoka / "First Penguin"
Main Role
Tsutsumi Shinichi
Kataoka Hiroshi
Main Role

Fukikoshi Mitsuru
Isoda Takashi
Support Role
Kajihara Zen
Yamanaka Atsushi
Support Role
Suzuki Nobuyuki
Nagasawa Kazuki
Support Role
Umezawa Tomio
Sugiura Hisamitsu
Support Role
Watanabe Daichi
Kotohira Yusuke
Support Role
Ishizuka Rikuto
Iwasaki Susumu / "Sukkun"
Support Role
Uemura Yuu
Yamanaka Takumi
Support Role
Shida Mirai
Yamafuji Soyo / "Soyo-Soyo"
Support Role
Toyama Toshiya
Yasuno Shigeru
Support Role
First Summer Uika
Shigemori Rinka
Support Role
Matsumoto Wakana
Mizoguchi Shizuka
Support Role
Yamaguchi Yoshiyuki
Nakagawa Chuji / "Chu" ["Sanshi Sendanmaru" fisherman]
Support Role
Matsumoto Minoru
Kotoge Shouichi / "Shou" ["Sanshi Sendanmaru" fisherman]
Support Role
Kitagawa Naoya
Komori Kentaro ["Sanshi Sendanmaru" fisherman]
Support Role
Takasugi Koh
Hamajiri Kohei ["Hamajiri Suisan" owner]
Support Role
Yamazaki Gakudai
Kaizuka Toshihide ["Hamajiri Suisan" fisherman]
Support Role
Tsujimoto Tatsunori
Negishi Mitsuhisha ["Hamajiri Suisan" fisherman]
Support Role
Jyo Kairi
Iwasaki Susumu [Present day / Narrator]
Support Role

Izawa Hiroshi
Nakagawa Kosuke (Ep. 1-2)
Guest Role
Aoyama Megu
Yuria ["Star Fish" hostess] (Ep. 1-2)
Guest Role
Kasugai Seina
["Star Fish" Mama] (Ep .1-2)
Guest Role
Ito Kazue
[Shiogasaki Hotel's Okami] (Ep. 1-2)
Guest Role
Mizuno Tomonori
[Yamaguchi prefectural office staff] (Ep. 1-2)
Guest Role
Murakami Shuga
[Hiroshi's son] (Ep. 1, 3, 5, 10)
Guest Role
Nakagoshi Noriko
Kataoka Miyako (Ep. 1, 5, 10)
Guest Role
Nishida Kouki
Taichi ["Sanshi Sendanmaru" fisherman] (Ep. 1)
Guest Role
Itagaki Yusuke
[Nodoka's homeroom teacher] (Ep. 1)
Guest Role
Okochi Hiroshi
Ando Takashi [Minister of Agriculture, Forestry and Fisheries] (Ep. 2)
Guest Role
Naito Seiwa
[Prefectural office staff who fight over a remote] (Ep. 2)
Guest Role
Shibu Asuka
[Kosuke's mistress] (Ep. 2)
Guest Role
Otada Naoki
Sakuragi Shohei ["Yoiya" manager] (Ep. 3)
Guest Role
Narimatsu Osamu
[Restaurant manager] (Ep. 3)
Guest Role
Hayami Mokomichi
Nagareyama ["Moncheri Mystique" Chef] (Ep. 3-4)
Guest Role
Musaka Naomasa
Sanada ["Sanada" itamae] (Ep. 3-4, 8-9)
Guest Role
Washio Machiko
Isoda Yasuko (Ep. 3, 6, 8, 10)
Guest Role
Seguchi Leiya
[Takumi's former classmate] (Ep. 4)
Guest Role
Ishii Masanori
Hiranuma Toshiya ["Setochuu Bank" branch manager] (Ep. 4-5, 7-8)
Guest Role
Yamazaki Kenji
[Head of Shiogamisaki fishing cooperative] (Ep. 6)
Guest Role
Katayama Seiki
["Hair Studio Aya" barber] (Ep. 6)
Guest Role
Kato Towa
[Boy who bullied Susumu] (Ep. 6)
Guest Role
Isayama Kouji
[Orthopedist] (Ep. 6)
Guest Role
Yoshida Kengo
Fujiwara Yuichi (Ep. 6-7)
Guest Role
Kaneda Akio
["Seibu Gyoren" chairman] (Ep. 6-8)
Guest Role
Ujiie Megumi
[Head of Shiogasaki Cooperative's ladies group] (Ep. 6, 10)
Guest Role
Adachi Rika
Shiromine Aina (Ep. 6, 9-10)
Guest Role
Hasegawa Tity
Okamura Sou (Ep. 7)
Guest Role
Yazaki Hiroshi
Osaka Takanori (Ep. 7-8)
Guest Role
Izumiya Shigeru
Tatsumi Ichirota (Ep. 7-10)
Guest Role
Teraizumi Ken
Nonoyama Hajime (Ep. 7-10)
Guest Role
Furukawa Shinji
[Audience who wanted more holiday] (Ep. 8)
Guest Role
Nagashima Tatsuya
[Doctor/Yusuke's colleague] (Ep. 8)
Guest Role
Konishi Ryosei
Hazama Masashi (Ep. 8-10)
Guest Role
Onuki Yusuke
Hayashida Raku (Ep. 8-10)
Guest Role
Suzunosuke
Shimada Hiroki (Ep. 9)
Guest Role
Sakata Masanobu
["Shinsen Organics" employee] (Ep. 10)
Guest Role
Kazami Rika
[Waitress] (Ep. 1)
Guest Role