Debbie Gallagher is a fictional character from the television series Shameless, which aired on Showtime. She is portrayed as the youngest daughter of Frank Gallagher, a neglectful father, and Monica Gallagher, who struggles with mental health issues. Throughout the series, Debbie evolves from a child into a resourceful and determined young woman, often taking on adult responsibilities to support her family. As the series progresses, Debbie faces various challenges, including financial struggles and personal relationships. Her character is known for her strong will and resilience, often showcasing her desire for independence and a better life for herself and her family.