[1] He is best known for his roles in Under the Tuscan Sun, Generation Kill, Tatarak, and as Soviet cosmonaut Alexei Poletov in the third season of the Apple TV+ original science fiction space drama series For All Mankind.
[2][3] "I thought my parents' decision to send me to Polish-language classes every Saturday ruined my childhood, but it's actually been my stepping stone into acting," Szajda said.
During his time at the school he participated in track and field, was a state champion wrestler, played trumpet and was the marching band drum major.
He spent a year at Bridgewater State College before moving to New York City to attend Fordham University at the Lincoln Center campus.
[6] In the 2009 movie, Tatarak (Sweet Rush in English) by Academy Award winner Andrzej Wajda, Szajda made his Polish film debut in the leading role of Boguś.
[1] In 2022, Szajda had a recurring role in the third season of the Apple TV+ original science fiction space drama series For All Mankind as Soviet cosmonaut Alexei Poletov, a member of Roscosmos' Mars-94 mission and one of the first humans to land on Mars.