Birgir Dagur Bjarkason as Addi

Áskell Einar Pálmason as Balli

Viktor Benóný Benediktsson as Konni

Snorri Rafn Frímannsson as Siggi

Sunna Líf Arnarsdóttir as Helga

Kamilla Guðrún Lowen as Anna

Kristín Ísold Jóhannesdóttir as Hófí

Ísgerður Elfa Gunnarsdóttir as Hulda

Aðalbjörg Emma Hafsteinsdóttir as Fríða

Blær Hinriksson as Símon

Ólafur Darri Ólafsson as Svenni

Anita Briem as Guðrún

Theodór Pálsson as Danni Braindead

Davíð Guðbrandsson as Haukur

Þórhildur Ingunn as Elísa

Sólveig Guðmundsdóttir as Unnur

Árni Arnarson as Toni

Stefán Franz Guðnason as Jónas

Arnar Dan Kristjánsson as Reporter

Bragi Árnason as Investigating police officer

Sigurður Eyberg as Investigating police officer

Mikael Leo Aclipen as Boy at party

Arnfinnur Þór Jónsson as Neighbour at party

Baldur Einarsson as Toggi

Stormur Jón Kormákur Baltasarsson as Kiddi

Daniel Hans Erlendsson as Villi

Jónmundur Grétarsson as Karate coach

María Pálsdóttir as Addi's teacher

Ebba Guðný Guðmundsdóttir as Addi's Social Worker

Helga Kristín Helgadóttir as Woman at party

Kári Trevor Park as Boy at party 3