Joyce Irene Grenfell OBE was an English diseuse, singer, actress and writer. She was known for the songs and monologues she wrote and performed, at first in revues and later in her solo shows. She never appeared as a stage actress, but had roles, mostly comic, in many films, including Miss Gossage in The Happiest Days of Your Life (1950) and Police Sergeant Ruby Gates in the St Trinian's series. She was a well-known broadcaster on radio and television. As a writer, she was the first radio critic for The Observer, contributed to Punch and published two volumes of memoirs.

A monologist, or interchangeably monologuist, is a solo artist who recites or gives dramatic readings from a monologue, soliloquy, poetry, or work of literature, for the entertainment of an audience. The term can also refer to a person who monopolizes a conversation; and, in an obsolete sense, could describe a bird with an unchanging, repetitive song.