(born March 5, 1989) is an American actor and musician. He is best known for his roles in the 2009 film 17 Again as Alex, in Sonny with a Chance and So Random! as Chad Dylan Cooper, and in the Disney Channel Original Movie Starstruck as Christopher Wilde.
Sterling Knight was born on March 5, 1989, in Hilton Head Island, South Carolina. He has a sister, Samantha Scarlett, and a brother, Spencer Shuga.
Knight began his career on stage in local productions. He made his acting debut in minor roles in Calm, Career Day, and Hi-Jinks. Knight's first role with Disney was in an episode of Hannah Montana, playing Lily's boyfriend Lucas, in 2007. Later in the year, Knight also appeared in two episodes of The Closer. In 2008, Knight appeared in Out of Jimmy's Head and Grey's Anatomy. In 2009, Knight played the role of Chad Dylan Cooper, an egotistical and self-centered cast member of Mackenzie Falls and self-proclaimed Hollywood legend in Sonny with a Chance. Knight made his film debut in 17 Again playing Alex O'Donnell, Matthew Perry/Zac Efron's son.
In 2010, Knight played teen heart-throb Christopher Wilde in the Disney Channel Original Movie Starstruck. According to comments made by Knight on Twitter, because he joined the cast so late, he only sang one song the soundtrack, the opening song. His character's remaining songs were sung by Drew Ryan Scott. Knight's next project was the movie Elle: A Modern Cinderella Tale with Ashlee Hewitt. He plays Ty Parker, a singer/songwriter who's looking for a change in his music and then finds a girl recording in a studio and when she leaves him he goes on a journey to find her. Although the movie was about the girl, Elle, he played a crucial part. The movie was released in April 2010.
In 2011, Knight returned to be in the Sonny with a Chance spinoff sketch comedy series So Random!. His recurring characters on "So Random!" included Possibly Sarcastic Skip, Dwayne Platowski, and Jimmy Sparrow and his impressions included Ralph Fiennes (as Lord Voldemort), Lucas Cruikshank (as Fred), Taylor Lautner (as Jacob Black), and Justin Bieber. The show was cancelled after one season. As of 2013 he is appearing as a guest star onMelissa & Joey as Lennox's boyfriend Zander. Knight will also be returning for the 4th season in 2014. In 2014 he starred in "The Hotwives of Orlando" a Hulu exclusive show as Billy.