|Portrayed by||Pat Laffin|
|First Appearance||22 September 1997|
|Last Appearance||25 September 1997|
Sean is first seen as a lecherous drunk in a pub in the Irish village of Kilmoneen. Sean leers over Pauline Fowler's breasts and tries to buy her a drink, only to be told to leave her alone by Ian Beale. He later goes over to Pauline and tries to touch her, spilling stout on her. He is then thrown out of the bar.
Eamonn later tells Sean of his granddaughter Mary's affair with married man Gerry McCrae. Maggie races to Mary's school to collect her before violent Sean can get to her. She begs Pauline to take Mary back to Walford with her. Pauline gets Sean drunk until he falls asleep and then helps Maggie pack Mary's clothes.
As Pauline, Mary and the family leave Kilmoneen, Sean staggers into the road to try to stop the car, and stop Mary from leaving. Mark Fowler gets out of the car and punches Sean in the groin, and they speed off in the car, leaving Sean doubled over in pain.