She was discovered by a prominent dance agent while taking dance classes, which led to her professional debut, dancing in the comedy movie 'Mac and Me'. This early success led to dancing in popular music videos including Michael Jackson's 'Moonwalker;' a Los Angeles Music Center Ballet Tour; The Joffrey Ballet; Paula Abdul's video 'Forever Your Girl;' 'The MTV Awards' and 'The Arsenio Hall Show.'

At the age of 10, Cox won her first television role as a guest star on the comedy Mama's Family. She was a series regular on Someone Like Me and had recurring roles on the series Baywatch, Pearl, California Dreams and the daytime drama General Hospital. She was also featured on the comedy series Sister, Sister, The Nanny, Blossom, Murphy Brown and Night Court.

Cox's television movie credits include The Ryan White Story and Danger Island. Her additional feature films include Terminator 2: Judgment Day, The Glimmer Man and she appeared in a cameo role in The Nutty Professor II: The Klumps.