Dana Welles Delany (born March 13, 1956) is an American film, stage (stage (theatre)), and television actress. She is known for her role as Colleen McMurphy on the ABC (American Broadcasting Company) television show China Beach (1988-91), in more recent times as Katherine Mayfair on Desperate Housewives and, as a voice-actress, Lois Lane in the DC Animated Universe as well as the TV series The Batman (The Batman (TV series)). Delany has been active in film, television, and stage since the late 1970s.