Dana Welles Delany (born March 13, 1956) is an American actress, producer, and activist. After appearing in small roles early in her career, Delany received her breakthrough role as Colleen McMurphy on the ABC television drama China Beach (1988–1991), for which she twice received the Primetime Emmy Award for Outstanding Lead Actress in a Drama Series in 1989 and 1992. She received further recognition for her appearances in the films Light Sleeper (1992), Tombstone (1993), Exit to Eden (1994), The Margaret Sanger Story (1995), Fly Away Home (1996), True Women (1997), and Wide Awake (1998).
In the 2000s, Delany appeared in main roles on several short-lived television series, including Pasadena (2001), Presidio Med (2002–2003), and Kidnapped (2006–2007). From 2007 to 2010, she starred as Katherine Mayfair on the ABC television series Desperate Housewives, for which she received a Prism Award in 2009. Delany then starred as Megan Hunt on the ABC medical drama Body of Proof (2011–2013), and as Crystal Harris on the Amazon drama series Hand of God (2014–2017).