This page is about the US incarnation of Debbie Gallagher. For the UK version, see Debbie Gallagher. Deborah "Debbie" Margaret Gallagher is a main character. She is the third youngest Gallagher sibling. In the very beginning of the series Debbie is described by Frank as being "sent from the gods. Except not by much because she is extremely mature and grounded for her age, so much so that she has trouble relating and socializing with kids in her age group.
However, in an ironic twist as Debbie gets older, she becomes more immature, immoral, self-centered, egotistical, perverted, and delusional, in other words like Frank. Debbie is a sweet, spirited, smart, kind-hearted girl. She lived for years with the hope of having a good father in Frank, hoping he may one day change. She showed genuine concern and care for her father when no-one else did. Though, she is capable of unconditional love, she demanded love from Frank in return, only to be disappointed by his selfish, uncaring nature.
When asked if she ever wished Frank dead, she confirmed it. Debbie has, or at least had, a great deal of respect, trust and love towards Fiona, who was her closest sibling and only sister. She always supported her in house and often took care of Liam.
She was originally greatly mature as she could explain a confused Carl how lesbian sex works in season 1. She holds great resentment for her mother for leaving, even despises her. This is evident through Debbie, when she first saw Monica in several years, pushing her away and running home, as well as her attempts to take Liam and "start her own family".
Though her hatred is lesser than Fiona's, due to Debbie's last days with Monica being of a mostly positive nature since she helped in getting her daughter back. She loves Liam deeply, whom she spends most time with, and began to cry when Monica announced that she wanted to take Liam with her. She was upset about her great aunt's death, despite never meeting her. Her relationship to Frank is very complicated. It shows her ability to daydream at her maximum when she tolerated him most, as well as doing little acts of kindness like putting a pillow under his head when he's passed out, or making him breakfast.
