Park got her start in 2003 when she was the "Youngest comedian to ever perform at the famous Hollywood Improv". In 2006, she auditioned for the first season of American reality competition America's Got Talent under the stage name Syd the Kid, where she had advanced on to the semi-finals. Park had to drop out due to her acting career. She made her television debut on the teen sitcom That's So Raven in 2006.
In 2010, Park was hired to play Ellie Danville, the adopted daughter of Detective Jo Danville In 2010, Park also starred as "Tootsie Roll" in the independent dark-comedy Spork.