Sterling Sandmann Knight is an American actor and musician. He was born on March 5, 1989 in Houston, Texas.
Sterling Knight is best known for playing Alex O'Donnell in the movie 17 Again (2009), Chad Dylan Cooper in the Sonny with a Chance TV series (2009–2011) and its spinoff So Random! (2011–2012), Zander Carlson in Melissa & JoeyMelissa & Joey, and Christopher Wilde in the television film Starstruck (2010). He also performed two tracks on the soundtrack album of Sonny with a Chance.