Ruby Margaret Comstock (née Doyle) (b. 4 March 1979) was a Canadian half-blood witch and journalist for the newspaper known as the "Dominion Press". She was born to the deceased Arthur and Margaret Doyle (née Milton), a Muggle and half-blood respectively, and was the younger sister of the late Julia Doyle, who lost her life when a Portkey vanished. Ruby attended Ilvermorny School of Witchcraft and Wizardry from 1990 to 1994, to which she finished her education at Whitestar Academy of Magic after she was expelled.