In 2016 he starred as Alex in the series StartUp. He has stared in the movies Rocket Science, American Pastime, Disturbia, The Wackness, 21, Nick and Norah’s Infinite Playlist, Friday the 13th, The Good Guy, Labor Pains, Garner, A Nightmare on Elm Street, 10 Years, Kid Cannabis, Everything Before Us, and Money Monster. Yoo has also appeared in episodes of the TV series Ed, Law & Order: Special Victims Unit, ER, and Drop Dead Diva.