She became known for her role Val Gibson in the television series Working (1998–1999). She had several more television appearances in series such as Big Easy (1996), Diagnosis: Murder (1996), Seinfeld (1996), Star Trek: Voyager (1997), NYPD Blue (2001–2002), CSI: Crime Scene Investigation (2003), Charmed (2003), NCIS (2005), Ghost Whisperer (2010), The Mentalist (2012), and as a bartender in Two and a Half Men (2003–2012). Most recently, she appeared on the series Saving Grace on TNT, starred in the NBC pilot Man of Your Dreams and acted opposite Donald Sutherland in the CBS pilot The Eastmans. McFarland played a recurring role on Faking It as Farrah Raudenfeld, mother of Amy Raudenfeld.