Sean Flaherty, played by Pat Laffin, is the husband of Maggie (Olivia Shanley). When Maggie's sister, Pauline Fowler (Wendy Richard) and her family visit Maggie, it becomes clear to them that Sean is an abusive drunk, who is particularly harsh towards Mary (Melanie Clark Pullen), his granddaughter.
Read more about this topic: List Of East Enders Characters (1997)