Matt Devere is a British actor whose exact birthday and birthplace are not publicly available in major sources. He trained at the London Academy of Music and Dramatic Art (LAMDA) and has been active since 2002, accumulating over 50 film and television credits. His early television work includes EastEnders, City Central, Josie Lawrence, and Painkiller Jane (2007, as Rawlings). His most notable film credits include The Martian (2015, as Satcon), Spy (2015, as Pilot), Robin Hood (2018, as Gerald the Crossman), Terminator: Dark Fate (2019), Eragon (2006), Hercules (2014), Season of the Witch (2011), Lords of Chaos (2018), Papillon (2017), Extinction (2015), and Ruben Brandt, Collector (2018, voice). On television he is best known for his recurring role as King Osbert in The Last Kingdom (2015), Captain Yates in Halo (2022), and appearances in The Pillars of the Earth (2010, 8 episodes), Strike Back (2013–2018), Emerald City (2017), The Witcher (2019), Maigret (2016), Desperate Measures (2022), and SAS: Red Notice (2021). More recently he appeared in Silent Zone (2025, as Cassius) and River Wild (2023, as Walt).