Johannes Haukur Johannesson is an English actor best known for playing Lem Lemoncloak in the sixth season of the popular HBO series Game of Thrones. Born and raised in Iceland and Faroe Islands, Haukur can fluently speak Icelandic, Faroese, Danish and English. Having made his acting debut with Reykjavik-Rotterdam (2008), his first international film was Darren Aronofsky`s Noah (2014) as Cain, the world`s first murderer. His other notable films include The Aquatic Effect (2016) and I Remember You (2017).

In 2017 he starred in director David Leitch`s action-thriller, Atomic Blonde that stars Charlize Theron in the lead, with James McAvoy, John Goodman, Sofia Boutella, Eddie Marsan and Toby Jones playing supporting roles. In 2018, he appeared alongside Kodi Smit-McPhee and Leonor Varela in Albert Hughes`s Hollywood action drama thriller Alpha. His other releases include The Good Liar (2019) and Bloodshot. (2020)