Viewers in the U.S. got to know Kingsley Ben-Adir in 2017 with his breakout role in Guy Ritchie's "King Arthur: Legend of the Sword," but many British fans already knew the charming actor from his character Dr. Marcus Summer on the murder mystery series "Vera" (ITV, 2011-). The British actor, who was born to an English mother and Moroccan father, made his professional acting debut on the stage, co-starring in the acclaimed play "Blue/Orange" at the Middlesbrough Theatre in London in 2008. Later that same year, he enrolled at the prestigious Guildhall School of Music and Drama, where he appeared in several plays, such a "The Old Bachelor," "Oedipus," and "Cabaret." After graduating in 2011, Ben-Adir began pursuing careers on both stage and screen. He appeared in several Shakespearean productions, playing Demetrius in "A Midsummer Night's Dream" at Regent's Park Open Air Theatre in 2012 as well as Borachio in a production of "Much Ado About Nothing" directed by Mark Rylance at the Old Vic Theatre in 2013. Meanwhile, the young actor landed his first major feature film role in the zombie thriller "World War Z" in 2013, and joined the cast of "Vera" the following year. He appeared alongside Michael Fassbender in the family crime drama "Trespass Against Us" in 2016 before picking up a sword for his role in "King Arthur."