Charlie's Angels is a television series about three women who work for a private investigation agency, and is one of the first shows to showcase women in roles traditionally reserved for men. The series was broadcast in the USA on the ABC Television Network from 1976 to 1981 and was one of the most successful series of the 1970s.

Charlie's Angels was created by Ivan Goff and Ben Roberts and produced by Aaron Spelling and Leonard Goldberg. In pre-production, the original proposed title was The Alley Cats with the idea being that the show would be a vehicle for upcoming actress Kate Jackson who had proved very popular with viewers in another police drama, "The Rookies". Jackson was initially cast as Kelly but the actress was more attracted to the role of Sabrina and her request to switch roles was agreed. Thus the early part of the pilot relies very heavily on Jaclyn Smith as the casting change had been taken too late in the day to make further changes. Another title considered was Harry's Angels, but was changed to "Charlie's Angels" as not to conflict with another television series Harry O.