Mary Flaherty is a fictional character from the BBC soap opera EastEnders, played by Melanie Clark Pullen, from 22 September 1997 to 23 February 1999.

Richie Taylor of the Daily Mirror said "It will be a huge break for Melanie, 23, who finished college only earlier this year and will make her screen debut in the series.

[2] The fictional character Mary is the granddaughter of Maggie Flaherty (Olivia Shanley), Pauline Fowler's (Wendy Richard) long-lost sister.

Mary finds a good friend in her cousin Mark (Todd Carty), and decides to move Walford, and their relationship improves over time.

Mary breaks her pelvis whilst on holiday in Norfolk and then gets involved with Matthew Rose (Joe Absolom) and Robbie Jackson (Dean Gaffney), before leaving Walford with her father, Conor, and his pregnant lover, Mark's wife Ruth Fowler (Caroline Paterson).