von Zerneck began her acting career in commercials and television films. From 1983-1984, she played Louisa "Lou" Swenson on General Hospital. She is perhaps best known for her portrayal of Donna Ludwig, Ritchie Valens' girlfriend in the film La Bamba (1987). Her last acting credit was in the 2001 television film Acceptable Risk, based on the novel of the same name. She has worked primarily as a film and television producer in recent years including Recovery Road, No One Would Tell and Christmas on Honeysuckle Lane.

Personal life

Danielle is the daughter of film producer Frank von Zerneck and actress Julie Mannix. In 1989, she married James Fearnley, an English accordion player for the Irish folk/punk band The Pogues.