Danielle von Zerneck made her feature film debut in My Science Project (1985). Fans of the soap opera General Hospital will recognize her as Louisa Swenson. She is the daughter of producer Frank von Zerneck and actress Julie Mannix. Her grandfather, Peter von Zerneck, is also an actor. Her best-known film roles include that of Lou Diamond Phillip's love interest Donna in La Bamba (1987) and of Wanda in Living in Oblivion (1995).