Douglas Alexander Smith is a Canadian actor known for his work on the HBO series Big Love as Ben Henrickson. His other work includes Percy Jackson: Sea of Monsters, Terminator Genisys, Vinyl, Miss Sloane, When We Rise, The Alienist and the second season of HBO's Big Little Lies. Early life Smith was born in Toronto, Ontario, Canada, the son of Terrea (née Oster), an American-born teacher, and Maurice Smith, a producer of low-budget films who is originally from the United Kingdom. Smith's mother appeared in several of the films that his father produced during the 1980s. He is the younger brother of actor Gregory Smith. Career Smith has been acting since he was cast as Malvolio in his fourth grade production of Shakespeare's comedy Twelfth Night. Audiences first saw him on the big screen as a young version of Brendan Fraser's character in Blast from the Past (1999). As a teenager, he went to Australia to play the lead role as an American boy living in Australia in a series called Out There. Early in his career, Smith made several appearances on television procedurals, including CSI: Crime Scene Investigation, CSI: Miami, Close to Home, Family Law, The X-Files, Crossing Jordan, and Cold Case. Smith is known for his regular role as Ben Henrickson on the HBO series Big Love, which aired for five seasons. He also played the role of Edward Porris in Brandon Cronenberg's directorial debut, Antiviral. The film competed in the Un Certain Regard section at the 2012 Cannes Film Festival and took home the award for Best First Canadian Feature at the 2012 Toronto International Film Festival. In late 2012, Smith filmed the musical/comedy/horror film Stage Fright. He played the roles of both Metal Killer and Buddy, performing two musical numbers in the film. Stage Fright premiered at the 2014 SXSW Film Festival and was released by Magnolia Pictures. In 2013, he starred as Tyson, the cyclops half-brother of Percy Jackson in the film Percy Jackson: Sea of Monsters. He also began production for his lead role in the horror film Ouija for Universal/Platinum Dunes at the end of 2013. An alumnus of RADA's Shakespeare Summer School, Smith made his off Broadway debut in 2014, starring in the New York premiere of Simon Stephens' Punk Rock at the Lucille Lortel Theatre in the West Village. He played William Carlisle. The production and Smith's performance received favorable reviews.