Sharon Eileen Acker was a Canadian film, stage, and television actress and model. She appeared mostly on television in Canada and the United States from 1956 to 1992. She played Della Street, Perry Mason's loyal secretary, in The New Perry Mason opposite Monte Markham. Her film roles include Lucky Jim, Point Blank and Don't Let the Angels Fall.

Della Street is the fictional secretary of Perry Mason in the long-running series of novels, short stories, films, and radio and television programs featuring the fictional defense attorney created by Erle Stanley Gardner.