One of the causes Sinead supports is NSPCC's Child's Voice Appeal. NSPCC is an organization aimed at alleviating child abuse.
Sinead has been living with her partner and two sons, Dylan (b. 2003) and Jacob (b. 2008), in Radcliffe, Manchester, England.
Her skills include driving, barwork, horse riding, skiing, and swimming.
As a model, Sinead has been to Spain for fashion catalogue photoshoots and has been part of the London Fashion Week.
Sinead is 5'9" (1.75 m) tall. She has green eyes and brown hair.
Sinead's parents are Ian and Siobhan. She has two younger sisters, Lara and Hayley.
Sinead: (about being cast on "Drop Dead Gorgeous"; in a September 2007 interview) When they told me I'd been chosen to play Beth I just couldn't believe it. I was over the moon. When I think back to this time last year and how far I have come with my acting since then, it is amazing.