Constance Zimmer is an American actress perhaps best known for her role as Dana Gordon in HBO's Entourage and as Claire Simms on the critica…Constance Zimmer is an American actress perhaps best known for her role as Dana Gordon in HBO's Entourage and as Claire Simms on the critically acclaimed ABC legal comedy-drama Boston Legal. She also starred on NBC's short-lived series Love Bites. From 2013 to 2014, she starred in the Netflix original series House of Cards. She currently stars in the television series UnREAL that premiered on Lifetime on June 1, 2015.