Matthew Shear is an American actor. He had his career beginnings in the late 2000s, debuting in the film Taking Woodstock. He next appeared in the film Beware the Gonzo. On television, he had his first role in an episode of NYC 22. In 2014, he had roles in the films Don Peyote and While We’re Young. He went on to have performances in the movies Delinquent, The Boy Downstairs, and The Meyerowitz Stories. Back on television, after guest appearances in Horace and Pete and Deadbeat, he starred as Detective Lucius Isaacson in The Alienist. His latest film role was in 2019’s Marriage Story.