Katia Winter is a Swedish actress. She had her career beginnings in the mid-2000s, debuting in the film Stockholm Boogie. On television, she first appeared in the British series Dubplate Drama. She later had performances in the 2009 films Unmade Beds and Malice in Wonderland. At the same time, she guest-starred in an episode of Lewis. Her first recurring role on television was as Nadia in the Showtime series Dexter. Between 2013 and 2015, she gained recognition for her role as Katrina Crane in the Fox series Sleepy Hollow. She next played Freydis Eriksdottir in Legends of Tomorrow. As of 2019, she stars as Gwen Karlsson in the CBS series Blood & Treasure.