Deborah "Debbie" Gallagher (born 27 January 1993) is the fifth Gallagher sibling. She is Frank (David Threlfall) and Monica Gallagher's (Annabelle Apsion) second eldest daughter. Lip (Jody Latham), Carl (Elliott Tittensor) and Liam (Johnny Bennett) are her brothers. Her sisters are Fiona (Anne-Marie Duff) and Stella (Nikita Brownlee); her half-brothers are Ian (Gerard Kearns) and Nigel; and her half-sister is Delia. Although Debbie is only 16 (at the time of her last appearance on the show in 2009), she is old beyond her years because she grew up without a mother and undertook the majority of the domestic tasks, At the start of the series Debbie tended to use her childlike innocence to get out of any mess she or family get themselves into. Since Fiona went to Amsterdam, Debbie is often tasked with saving the family from ruin. For example, she steps in when Liam denounces God and the school he attends makes a move to expel him. Although the results are disastrous, she shows herself to be a diligent individual upon whom her family can depend. Originally Debbie was presented as a slightly unusual and awkward child, she retains her high intelligence and resourcefulness throughout the show. This allows Debbie to be successful when she becomes head of the household and takes care of the domestic duties such as cooking, ironing, cleaning and taking Liam to school. She also provides her family members with a high level of emotional support. As a consequence, Debbie missed out on socialising and has become mature beyond her years. When Fiona left Chatsworth at the end of series 2, Debbie seemed, at first, to relish the responsibility of running Gallagher household. Debbie appeared in 65 episodes in total.