Victoria Natalie Yeates is an English actress. She is best known for her role as Sister Winifred in the period drama series Call the Midwife. She also appeared in the film Fantastic Beasts: The Crimes of Grindelwald. Yeates was born and raised in Bournemouth, Dorset and practised ballet dancing as a child. In 2006, she earned a degree in acting at the Royal Academy of Dramatic Art.