Dana Welles Delany (born March 13, 1956) is an American film, stage, and television actress, producer, presenter, and health activist. Delany has been active in show business since the late 1970s. Following small roles early in her career, Delany garnered her first leading role in 1987 in the short-lived NBC sitcom Sweet Surrender and achieved wider fame in 1988–1991 as Colleen McMurphy on the ABC television show China Beach, for which she won two Primetime Emmy Awards (1989, 1992). She received further recognition for her performances 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). Since the mid-1990s, Delany has served on the board of the Scleroderma Research Foundation.
Delany is also a voice actress. She played Lois Lane in the DC animated universe as well as in The Batman animated series. In an interview, she said she loves to play "complicated characters".