Egill Ólafsson as Kristófer

Kōki as Miko (Young)

Pálmi Kormákur Baltasarsson as Kristófer (Young)

Masahiro Motoki as Takahashi

Yōko Narahashi as Miko

Ruth Sheen as Mrs. Ellis

Masatoshi Nakamura as Kutaragi

Meg Kubota as Hitomi

María Ellingsen as Ella

Benedikt Erlingsson as Dr. Stefánsson

Sigurður Ingvarsson as Jonas

Starkadur Petursson as Markús

Tatsuya Tagawa as Arai-San

Charles Nishikawa as Goto-San

Eiji Mihara as Dr. Kobayashi

Akshay Khanna as Philllip

Theodór Júlíusson as

Kieran Buckeridge as Receptionist London Hotel

Brandy Row as Tattoo parlor owner

Masaya Mimura as Naruki

Rie Shibata as Hashimoto

Eugene Nomura as Akira

Katla M. Þorgeirsdóttir as Marrige Councelor

Anthony Bacigalupo as British Man

Harpa Elísa Þórsdóttir as Sonja (voice)

Andrew Barron as Fishmonger

Richard Rycroft as School Official

Jules Tait as Librarian

Jules Tait as Hotel Receptionist - Japan

Ania Powazka as Retirement Home Attendant

Ylva Þórsdottir Planman as Duty Free Attendant

Paul Long as Restaurant Waiter London

Takashi Nishina as Chef Kawasaki

Jo Kataoka as Kawasaki's Son

Osamu Tanpopo as Sake Bar Owner

Fumi Sugimoto as Flower Shop Attendant

Kenta Ogawa as Hotel Porter - Japan

Masaru Yamashita as Yamamoto-san

Hiroyuki Nomura as Nippon Customer

Martin Wright as Hotel Doorman

Ingibjörg Ásmundsdóttir as Doctor's Assistant (voice)

Atsuko Sato as Narrator

Ingvar Þór Björnsson as Radio News Reporter

Daigo Tanji as Karaoke Bar Owner

Shiun Sato as Shoe Shop Attendant

Kevin Tran as Doorman in Harrow

Egill B. Hreinsson as Piano Player

Giichi Takasawa as Obstetrician

Miku Konishi as Nurse

Yayoi Mizoguchi as Nurse

Claire Woodland as New Tenant