Lucy Butler was the alias of a demon that appeared in the television series Millennium, and is the archenemy of the protagonist Frank Black.
She was portrayed by Sarah-Jane Redmond
Lucy Butler was the female persona of a demon that Frank Black had several encounters with between 1997 and 1999. Butler would sometimes also appear as a long-haired man, as well as in "her" true demon form.
Black first encountered Butler after she helped her husband Ephraim Fabricant escape from a hospital where he was undergoing surgery to have one of his kidneys removed and given to his sister. Butler removed Fabricant's other kidney and it was somehow placed in the refrigerator in the Black's house. Butler later appeared to Catherine Black in her male appearance. She later appeared to Bob Bletcher, interchanging between her female form and demon form. Bletcher was killed soon after.
Several weeks later, Black saw Alistair Pepper appear as Butler.
Butler later began kidnapping young adults who were average students, but had great potential. She would imprison them in small rooms and play "Love Is Blue" over and over again.
By 1999, Butler was working as the nanny for John Saxum, Una Saxum and their daughter Divina Saxum.