Denis O'Hare (born January 17, 1962) is an American stage and screen actor, best known for his roles in the plays Take Me Out and Sweet Charity, for his portrayal of vampire Russell Edgington on the series True Blood and his different roles on American Horror Story, and for his supporting roles in such films as Milk, Changeling, and Dallas Buyers Club.

丹尼斯·奥黑尔（Denis O'Hare，1962 年 1 月 17 日出生）是一位美国舞台和银幕演员，最出名的是他在戏剧《带我出去》和《甜蜜的慈善》中的角色，他在《真爱如血》系列中饰演的吸血鬼罗素·埃金顿和他在《美国恐怖故事》中的不同角色，以及他在《牛奶》等电影中的配角， Changeling 和达拉斯买家俱乐部。