He played a leading role in the movie "Prayers for Bobby" alongside Sigourney Weaver, which premiered in January 2009 on Lifetime. In November, he played the role of Ben Tennyson in "". In January 2012, Kelley was in the TV movie "Sexting in Suburbia", with Liz Vassey and Jenn Proske. In 2014 Kelley joined the cast of the MTV show "Teen Wolf" as Jordan Parrish, a young deputy whose supernatural nature sparked an ongoing media buzz as neither audience nor Kelley himself knows what sort of creature Parrish is but later found out that he is a Hellhound in the summer finale of season five.