<Tr> <Td_colspan="2"> Website </Td> </Tr> <P> Fortitude is a British sci - fi psychological thriller television series created and written by Simon Donald . A 12 - episode series was commissioned by Sky Atlantic in 2013, and started airing on 29 January 2015 . The series is set in the fictional Arctic Norwegian settlement of Fortitude . On 9 April 2015, Sky Atlantic recommissioned the show for a second series consisting of 10 episodes, which premiered on 26 January 2017 . On 25 January 2018, Sky announced a third and final series would air in late 2018, consisting of 4 episodes . </P> <P> On the Norwegian Arctic island of Svalbard, things appear calm on the surface; a string of violent and increasingly strange deaths, one of which due to an exotic parasite that has survived in the ice for thousands of years, slowly exact a toll on the quiet international community where almost everyone appears to be keeping at least one secret . </P> <Table> <Tr> <Th> Actor </Th> <Th> Character </Th> <Th_colspan="5"> Seasons </Th> </Tr> <Tr> <Th> </Th> <Th> </Th> <Th> </Th> </Tr> <Tr> <Td> Richard Dormer </Td> <Td> Sheriff Dan Anderssen </Td> <Td_colspan="3"> Main </Td> </Tr> <Tr> <Td> Sofie Gråbøl </Td> <Td> Governor Hildur Odegard </Td> <Td_colspan="2"> Main </Td> <Td_colspan="1"> </Td> </Tr> <Tr> <Td> Björn Hlynur Haraldsson </Td> <Td> Police Sergeant / Sherrif Eric Odegard </Td> <Td_colspan="3"> Main </Td> </Tr> <Tr> <Td> Mia Jexen </Td> <Td> Police Constable Ingrid Witrey </Td> <Td_colspan="3"> Main </Td> </Tr> <Tr> <Td> Alexandra Moen </Td> <Td> Police Constable Petra Bergen </Td> <Td_colspan="3"> Main </Td> </Tr> <Tr> <Td> Sienna Guillory </Td> <Td> Natalie Yelburton </Td> <Td_colspan="3"> Main </Td> </Tr> <Tr> <Td> Luke Treadaway </Td> <Td> Vincent Rattrey </Td> <Td_colspan="3"> Main </Td> </Tr> <Tr> <Td> Darren Boyd </Td> <Td> Markus Huseklepp </Td> <Td_colspan="3"> Main </Td> </Tr> <Tr> <Td> Verónica Echegui </Td> <Td> Elena Ledesma </Td> <Td_colspan="2"> Main </Td> <Td_colspan="1"> </Td> </Tr> <Tr> <Td> Ramon Tikaram </Td> <Td> Tavrani Tavra </Td> <Td_colspan="2"> Main </Td> <Td_colspan="1"> </Td> </Tr> <Tr> <Td> Nicholas Pinnock </Td> <Td> Frank Sutter </Td> <Td_colspan="1"> Main </Td> <Td_colspan="2"> </Td> </Tr> <Tr> <Td> Jessica Raine </Td> <Td> Julia' Jules' Sutter </Td> <Td_colspan="1"> Main </Td> <Td_colspan="2"> </Td> </Tr> <Tr> <Td> Christopher Eccleston </Td> <Td> Professor Charlie Stoddart </Td> <Td_colspan="1"> Main </Td> <Td_colspan="2"> </Td> </Tr> <Tr> <Td> Stanley Tucci </Td> <Td> Detective Chief Inspector Eugene Morton </Td> <Td_colspan="1"> Main </Td> <Td_colspan="2"> </Td> </Tr> <Tr> <Td> Michael Gambon </Td> <Td> Henry Tyson </Td> <Td_colspan="1"> Main </Td> <Td_colspan="2"> </Td> </Tr> <Tr> <Td> Jessica Gunning </Td> <Td> Shirley Allerdyce </Td> <Td_colspan="1"> Main </Td> <Td_colspan="2"> </Td> </Tr> <Tr> <Td> Johnny Harris </Td> <Td> Ronnie Morgan </Td> <Td_colspan="1"> Main </Td> <Td_colspan="2"> </Td> </Tr> <Tr> <Td> Aaron McCusker </Td> <Td> Jason Donnelly </Td> <Td_colspan="1"> Main </Td> <Td_colspan="2"> </Td> </Tr> <Tr> <Td> Phoebe Nicholls </Td> <Td> Dr. Margaret Allerdyce </Td> <Td_colspan="1"> Main </Td> <Td_colspan="2"> </Td> </Tr> <Tr> <Td> Dennis Quaid </Td> <Td> Michael Lennox </Td> <Td_colspan="1"> </Td> <Td_colspan="1"> Main </Td> <Td_colspan="1"> </Td> </Tr> <Tr> <Td> Michelle Fairley </Td> <Td> Freya Lennox </Td> <Td_colspan="1"> </Td> <Td_colspan="1"> Main </Td> <Td_colspan="1"> </Td> </Tr> <Tr> <Td> Edvin Endre </Td> <Td> Rune Lennox </Td> <Td_colspan="1"> </Td> <Td_colspan="1"> Main </Td> <Td_colspan="1"> </Td> </Tr> <Tr> <Td> Ken Stott </Td> <Td> Erling Munk </Td> <Td_colspan="1"> </Td> <Td_colspan="1"> Main </Td> <Td_colspan="1"> </Td> </Tr> <Tr> <Td> Parminder Nagra </Td> <Td> Dr. Surinder Khatri </Td> <Td_colspan="1"> </Td> <Td_colspan="1"> Main </Td> <Td_colspan="1"> </Td> </Tr> <Tr> <Td> Robert Sheehan </Td> <Td> Vladek Klimov </Td> <Td_colspan="1"> </Td> <Td_colspan="1"> Main </Td> <Td_colspan="1"> </Td> </Tr> <Tr> <Td> Paul Ready </Td> <Td> Mark Devlin </Td> <Td_colspan="1"> </Td> <Td_colspan="1"> Main </Td> <Td_colspan="1"> </Td> </Tr> </Table>

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