Darya Nikolaevna Ekamasova (Russian: Дарья Николаевна Екамасова; born 20 May 1984) is a Russian theater and film actress. Her film credits include Once Upon a Time There Lived a Simple Woman (2011), Free Floating (2006) and Celestial Wives of the Meadow Mari (2012). She was also featured in the television mini-series Kuprin. Yama (2014). In the fifth and sixth seasons of The Americans (2017-2018), she plays the role of Sofia Kovalenko. Ekamasova was born in Moscow, Russian SFSR, Soviet Union. After music school she attended the Russian University of Theatre Arts (Workshop Aleksandr Porokhovschikov). Ekamasova made her debut in Vladimir Ageev's play "Captive Spirits" as Lyubochka Mendeleeva (Playwright and Director Center n/p A. Kazantsev and M. Roshchin). She also appeared in the plays "Life is Good", which received the Special Jury Prize Dramatic Theatre National Theatre Award "Golden Mask" in 2010; and "18th Hour".