Peggy Cummins, born Augusta Margaret Diane Fuller, was a British actress whose career developed mainly between the 1940s and the early 1960s. She began acting as a teenager in British cinema before moving to Hollywood, where she was initially cast in the lead role in *Forever Amber* (1947), only to be replaced. She achieved international fame with her most iconic role, that of the femme fatale Annie Laurie Starr in Joseph H. Lewis's film noir *Gun Crazy* (1950), a performance that defined her image. After returning to the United Kingdom, she continued to work in notable films such as the horror classic *Night of the Demon* (1957) and the action thriller *Hell Drivers* (1957). She retired from acting in 1961 to dedicate herself to her family. Although she did not receive major awards, her performance in *Gun Crazy* is now considered one of the most influential in the history of the film noir genre, securing her status as a cult film icon.