Sarah, who is just 36, was really the third star of the series as Connell's mam "Lorraine" and she has revealed she gave birth to a baby boy in January.
She stars in a new comedy called "Frank of Ireland" alongside brothers Brian and Domhnall Gleeson and was pregnant when they were filming. It is a co-productions from Channel 4 and Amazon Studios and premieres on Amazon Prime today, April 16th
Photo Credit: BBC/Normal People
