Miriam Margolyes is an actress holding both British and Australian citizenship. She has gained prominence as a character actor on stage and screen. She received a BAFTA Award for Best Actress in a Supporting Role as Mrs Mingott in Martin Scorsese's The Age of Innocence (1993), and portrayed Professor Sprout in the Harry Potter film series (2002–2011). Margolyes was appointed Officer of the Order of the British Empire (OBE) in the 2002 New Year Honours for Services to Drama.

The Age of Innocence is a 1993 American historical romantic drama film directed by Martin Scorsese. The screenplay, an adaptation of the 1920 novel of the same name by Edith Wharton, was written by Scorsese and Jay Cocks. The film stars Daniel Day-Lewis, Michelle Pfeiffer, Winona Ryder and Miriam Margolyes, and was released by Columbia Pictures. The film recounts the courtship and marriage of Newland Archer (Day-Lewis), a wealthy New York society attorney, to May Welland (Ryder); Archer then encounters and legally represents Countess Olenska (Pfeiffer) prior to unexpected romantic entanglements.