Vidal was series regular in the ABC police drama High Incident (1995–1996), and on The Brian Benben Show in 1998, and later had major recurring roles on Third Watch from 1999–2001 as Dr. Sarah Morales, and ER from 2001–2004 as firefighter Sandy Lopez. From 2001 to 2004, Vidal starred opposite Bonnie Bedelia in the Lifetime drama series The Division, for which she received the 2002 nomination for the ALMA Award in the Best Actress Category. In 2006, she had a brief role in the short-lived action series Smith, as one of the federal agents looking for Ray Liotta's group of thieves. In 2010 she starred in NBC drama The Event.