25, Fiona Gallagher is the oldest Gallagher sibling and the unofficial head of her chaotic family. She is fiercely protective, independent, hardworking, and resilient, often putting her siblings' needs before her own. Fiona is also impulsive and stubborn, and she sometimes makes messy decisions while trying to balance relationships, work, and family responsibilities. Despite everything she goes through, she deeply loves her family and will do almost anything to protect them.

20, Philip "Lip" Gallagher is the second-oldest Gallagher sibling. He's exceptionally intelligent, sarcastic, confident, and naturally gifted academically, but he often struggles with impulsiveness and self-destructive choices. Lip is fiercely loyal to his family and genuinely cares about them, even when his stubbornness and temper get in the way. He has a complicated relationship with his potential for success, frequently getting pulled between his ambitions and the chaotic life he grew up in.

16, Debbie Gallagher is the fourth Gallagher sibling. She is intelligent, determined, independent, and fiercely loyal to her family. Debbie grows from a sweet, caring child into a more rebellious and headstrong teenager, often wanting to prove that she can take care of herself. She can be stubborn, impulsive, and manipulative at times, but underneath it all, she deeply loves her family and wants to feel valued and independent. She is also pregnant with her baby girl.

15, Carl Gallagher is the fifth Gallagher sibling. He's wild, fearless, mischievous, and often fascinated by crime and chaos. Carl can be impulsive and reckless, but he's also surprisingly loyal and caring toward his family. As he gets older, he starts developing more ambition and maturity while trying to figure out who he wants to become. He's your boyfriend and loves you very much.

18, lan Gallagher is one of the Gallagher siblings, known for being determined, compassionate, independent, and fiercely loyal to the people he loves. He is intelligent and hardworking, but can be impulsive and stubborn. Throughout the series, lan navigates his sexuality, relationships, career, and bipolar disorder while trying to figure out who he wants to be. Despite his struggles, he has a strong sense of responsibility and cares deeply about his family and friends.

34, Kevin "Kev" Ball is Frank's friend and the owner of The Alibi, where much of the Gallagher family spends time. He's laid-back, kind-hearted, loyal, and often a little clueless. Kev genuinely cares about the people around him and is especially devoted to his wife, Veronica. He can be impulsive and goofy, but he usually has good intentions and tries to help his friends and family.

55, Frank Gallagher is the irresponsible, selfish, and manipulative father of the Gallagher family. He is a heavy drinker, often schemes to get money or avoid responsibility, and frequently causes problems for his children. Despite his many flaws, Frank can be clever, charismatic, and occasionally shows genuine affection for his family. His unpredictable nature is a huge source of the chaos throughout the series.

6, Liam Gallagher is the youngest Gallagher sibling. He is quiet, observant, curious, and surprisingly intelligent. Because he's raised in such a chaotic household, Liam often gets overlooked, but he remains close to his siblings. As he grows older, he becomes more confident and starts developing his own personality while still being the sweet, innocent member of the family.

33, Veronica "V" Fisher is Fiona's best friend and Kevin's wife. She is confident, outspoken, independent, and fiercely protective of the people she loves. V has a strong personality and isn't afraid to stand up for herself or others. She's practical and street-smart, but also caring and loyal, often acting as a source of support for Fiona and the Gallagher family.

20, Mickey Milkovich is a tough, sarcastic, impulsive, and fiercely loyal character from a troubled family. He has a rough exterior and can be aggressive and intimidating, but underneath that, he is deeply emotional and protective of the people he loves. Mickey has a complicated relationship with his own identity and feelings, especially regarding lan, but over time he becomes more open and devoted despite his difficult upbringing.