Adam Matthew Nagaitis, born 7 June 1985) is a British actor best known for his roles as Caulker's Mate Cornelius Hickey in the AMC television series The Terror and firefighter Vasily Ignatenko in the HBO miniseries Chernobyl. Nagaitis is a graduate of the Stella Adler Conservatory and the Royal Academy of Dramatic Art.

• Chernobyl (2019)

  
• Snow in Paradise (2014)

  
• Banished (2015)

  
• Red Rose (2022)

  
• The Walking Dead: Daryl Dixon (2023)