Costa Ronin is a Russian-born American actor. He had his career beginnings in the 2010s with the movie Red Dog. He later became known for his recurring role as Oleg Igorevich Burov on The Americans, which he played from 2014 to 2018. He went on to have one-episode roles on such TV shows Extant, Agent Carter, Gotham, and Shooter. In 2018, he played Yevgeny Gromov on Homeland. At the same time, he guest-starred in an episode of Splitting Up Together. He then landed the role of Voytek Frykowski in the upcoming Quentin Tarantino feature film Once Upon a Time in Hollywood.