Kaikyo/Cast-Guests

• Gin Pun Chou as Shindou Shinobu (Tomoko's aunt) (ep1-2)
• Tajima Reiko as Okada Aiko (Kiyomi's mother) (ep1-2)
• Kim Sujin (金守珍) as Operations Head Kanayama (Busan Shipping) (ep1)
• Oh Yunbyeong (呉崙柄) as Executive Director Nitta (Busan Shipping) (ep1)
• Ryu Masato (りゅう雅登) as Management Director Sasaki (Busan Shipping) (ep1)
• Hashiguchi Taisuke (橋口泰介) as General Affairs Chief Hattori (Busan Shipping) (ep1)
• Harakawa Hiroaki (原川浩明) as the military police corporal (ep1)
• Mizushita Kiyoshi (水下きよし) as the military police private first-class (ep1)
• Ishibashi Masashi (石橋雅史) as Yoshie Keiichiro (head of the main house) (ep1)
• Fuwa Mansaku as Yoshie Fukutaro (head of the branch house) (ep1)
• Uchida Junko (内田淳子) as Yoshie Yuri (daughter-in-law of the main house) (ep1)
• Fukui Yuko (福井裕子) as Yoshie Tsutae (Fukutaro's wife) (ep1)
• Kikuchi Kinya as Yoshie Takashi (Fukutaro's son) (ep1)
• Kagimoto Keiko (鍵本景子) as Yoshie Yumiko (Takashi's wife) (ep1)
• Maruoka Shoji (丸岡奨詞) (ep1)
• Nabeshima Hiroshi (鍋島浩) (ep1)
• Han Tae-il (ハン・テイル, 한태일) (ep1)
• Kim Kwan-Eon (キム・クァンオン) (ep1)
• Tan Kang-Ho (タン・カンホ) (ep1)
• Takashima Hiroyuki (高嶋宏行) (ep1)
• Jang Seongho (張聖浩) (ep1)
• Lee Emi (李愛美) (ep1)
• Satoi Kenta as Kawase Akira (Shindo's younger brother) (ep2)
• Onishi Tamae (大西多摩恵) as Kawase Etsuko (Kawase's wife) (ep2)
• Shin Seul-Gi (シン・スルギ, 신슬기) as Park Jun-ho (Park Jun-In's younger brother) (ep2)
• Asano Kazuyuki as Assistant Inspector Akagawa (ep2)
• Yamashita Kisuke (山下規介) as Detective Aota (ep2)
• Tawaragi Tota as the Busan police inspector (ep2)
• Matsuoka Tetsunaga (松岡哲永) as the Busan detective (ep2)
• Myeong-Ju (ミョンジュ) as the Busan detective (ep2)
• Inuzuka Hiroshi as Tsukamoto Teruo (former Imperial University professor, now owner of a secondhand clothes store) (ep2-3)
• Goho Takato (五宝孝一) (ep2)
• Han Chung-Il (ハン・チュンイル) (ep2)
• Ono Asami (小野朝美) (ep2)
• Andy Iwamoto (アンディ岩本) (ep2)
• Kimoto Toshihiro (木元としひろ) (ep2)
• Hayashi Kanako (林加奈子) (ep2)
• Ono Shinya (小野真也) (ep2)
• Oka Taisuke (岡大介) (ep2)
• Kurogami Ryuji (黒神龍人) (ep2)
• Hashimoto Chieko (橋本千枝子) (ep2)
• Takemoto Shonosuke (竹本翔之介) (ep2)
• Tomaru Tomoharu (都丸智栄) (ep2)
• I Jeong-Ho (イ・ジョンホ, 이정호) (ep2)
• Hong Bae-Yeong (ホン・ペヨン) (ep2)
• Kawamura Maria (河村麻里愛) as Nonaka Hitomi (8 years old) (ep3)
• Saito Mika (斉藤光香) as Nonaka Hitomi (11 years old) (ep3)
• Denden as Assistant Inspector Konno (ep3)
• Kim Tei (キム・テイ) as Choi Gi-Sun (Jun-In's wife) (ep3)
• Tsukimi Kyoko (月見恭子) (ep3)
• Taguchi Karuta (田口かるた) (ep3)
• Han Seo-Hui (ハン・ソヒ) (ep3)
• Lee Ji Soo (イ・ジス) (ep3)
• Kim Yeong-Rak (キム・ヨンラク) (ep3)
• Someya Chikako (染谷千賀子) (ep3)
• Umi Natsuko (うみなつこ) (ep3)
• Kashiwagi Maki (柏木麻貴) (ep3)
• Nishida Hirofumi (西田優史) (ep3)
• Futahashi Yasuhiro (二橋康浩) (ep3)
• Kamitaki Masahiro (上滝征宏) (ep3)
• Sho Kosuge (ショー小菅) (ep3)