Nurse Able was a generic name for minor nurse characters in the M*A*S*H TV series. Like Nurse Baker and Nurse Charlie, the name Able was derived from the phonetic alphabet used by the US Army in the 1950s before it was changed to "Alpha, Bravo, Charlie" later. From Seasons 2-11 there were at least 21 episodes with a character named Nurse Able. They do not necessarily refer to the same person, and these characters were played by at least 11 different actresses.