| Person | Type | Job | Role(s) |
|---|---|---|---|
 Bergsteinn Björgúlfsson | Crew | Camera | Director of Photography |
 Kate Townsend | Crew | Production | Executive Producer |
Gunnar Óskarsson | Crew | Sound | Sound Designer |
Lucy McDowell | Crew | Production | Executive Producer |
 Ólafur Arnalds | Crew | Sound | Music |
Margrét Jónasdóttir | Crew | Production | Co-Producer |
Miikka Leskinen | Crew | Editing | Editor |
 Dylan Howitt | Crew | Directing | Director |
Andy Glynne | Crew | Production | Producer |
Skarphéðinn Guðmundsson | Crew | Production | Executive Producer |
 Björk | Cast | Actress | Self (archive footage) |
Helga Arnardóttir | Cast | Self - Journalist | |
Karl Schutz | Cast | Self - Head of West German Security Police (archive footage) | |
Sigurbjörn Haraldsson | Cast | Self - Guðmundur's Friend | |
Geirfinnur Einarsson | Cast | Self (archive footage) | |
Hlynur Þór Magnússon | Cast | Self - Prison Guard | |
Guðmundur Einarsson | Cast | Self (archive footage) | |
Ólafur Jóhannesson | Cast | Self - Justice Minister (archive footage) | |
Ragnar Aðalsteinsson | Cast | Self - Sævar's Lawyer | |
Halldór Reynisson | Cast | Self - Journalist | |
Páll Arnór Pálsson | Cast | Self - Kristjan's Lawyer | |
Arndís Sigurðardóttir | Cast | Self - Chair, Investigation Committee | |
Ómar Valdimarsson | Cast | Self - Journalist | |
Hörður Jóhannesson | Cast | Self - Reykjavik Police, 1981 - Present | |
Haukur Guðmundsson | Cast | Self - Police Detective, Keflavík Police | |
Hafþór Sævarsson | Cast | Self - Sævar's son | |
Valtýr Sigurðsson | Cast | Self - Chief Investigator, 1974-75 | |
Kristjan Vídarsson | Cast | Self (archive footage) | |
Kristin Anna Tryggvadottir | Cast | Self - Tryggvi's Daughter | |
Tryggvi Leifsson | Cast | Self (archive footage) | |
Thor B. Eggertsson | Cast | Self - Search and Rescue Team | |
Guðjón Skarphéðinsson | Cast | Self | |
Ögmundur Jónasson | Cast | Self - Minister of Internal Affairs 2011-13 | |
Albert Skaftason | Cast | Self (archive footage) | |
Sævar Ciesiekski | Cast | Self (archive footage) | |
Stefan Unnsteinsson | Cast | Self - Sævar's Biographer | |
Sigurþór Stefánsson | Cast | Self - Friend of Sævar and Erla | |
Erla Bolladóttir | Cast | Self | |
| Person | Type | Job | Role(s) |
