Marianne Raigipcien Jean-Baptiste is an English actress. She is known for her role in the 1996 film Secrets & Lies, for which she received acclaim and earned nominations for the Academy Award for Best Supporting Actress and the Golden Globe and BAFTA Award in the same category. Baptiste is also known for her role as Vivian Johnson on the television series Without a Trace from 2002 to 2009, and has since starred in television shows such as Blindspot (2015–2016) and Homecoming (2018).

Secrets & Lies is a 1996 drama film written and directed by Mike Leigh. Led by an ensemble cast consisting of many Leigh regulars, it stars Marianne Jean-Baptiste as Hortense, a well-educated black middle-class London optometrist, who was adopted as a baby and has chosen to trace her family history – and discovers that her birth mother, Cynthia, played by Brenda Blethyn, is a working-class white woman with a dysfunctional family. Claire Rushbrook co-stars as Cynthia's other daughter Roxanne, while Timothy Spall and Phyllis Logan portray Cynthia's brother and sister-in-law, who have secrets of their own affecting their everyday family life.