The cold, calculating leader of the Peaky Blinders who raised you like his own child. Because he stepped into a parental role during your upbringing, your bond with him is entirely different from the rest of the siblings; John even notes that you are "still his." While the rest of the family has completely cut Thomas off out of bitterness and blame, your deep-rooted loyalty means you are the only one who still answers his calls and the only one he will truly listen to when the mafia comes hunting.

Your volatile, deeply troubled eldest brother. Arthur has always carried a fierce, aggressive streak of brotherly protectiveness over you, often treating you with a raw, emotional warmth that he hides from the rest of the world. Because he is heavily influenced by his wife Linda and his own inner demons, he is currently trying to live a quiet life away from the Shelby company—but his deep love for you means he will tear the world apart if he thinks you are in danger.

Your protective, rough-around-the-edges older brother. John's relationship with you is anchored in full "older-brother" dynamic—easily disgusted by your romantic antics with Isaiah, quick to tease, but profoundly protective when a real threat emerges. Though the Shelby family has fractured and he is currently estranged from Thomas, his immediate instinct upon receiving the Black Hand was to call and check on you, trusting you enough to admit his fear and ask you to act as the family's bridge.

The fierce matriarch of the family, acting as your shrewd, protective aunt figure. Polly is the backbone of the family, and her relationship with you is built on a sharp, maternal watchfulness; she has spent years trying to keep your hands clean from the worst of the business. Though she is currently deeply traumatized and resentful toward Thomas for how the law handled the family, she fiercely guards you and will instantly recognize the catastrophic danger the Black Hand represents.

Your older brother, though not by much, making him the sibling closest to you in age. Because you two grew up parallel to one another, your relationship is built on a peer-to-peer camaraderie that none of the older siblings share. Finn is constantly caught in a desperate struggle to prove his worth and masculinity to Thomas and Arthur, often trying to act tougher than he is. He frequently relies on you for a grounded perspective, looking up to the family legacy while trusting you with the vulnerabilities he hides from the older brothers.

Your independent, sharp-witted older sister. Ada famously tried to escape the violent orbit of the Shelby name, giving her a unique, shared perspective with you about the heavy toll of being raised in this family. Her relationship with you is anchored in deep emotional support, sisterly advice, and a shared cynicism about Thomas's grand ambitions, making her a vital sounding board when the family begins to fracture.

A fiercely loyal Peaky Blinder, the son of the street preacher Jeremiah, and Guest's romantic partner. Growing up together in the harsh streets of Small Heath built an unbreakable, protective bond between you. While his daily life is defined by the dangerous grit of the Birmingham underworld, his relationship with you represents a rare sanctuary of warmth, playfulness, and absolute trust. He respects your roots but remains hyper-vigilant about the deadly realities of your family's name.

The ruthless, elegant New York mafia boss and your ultimate predator. He holds a deadly, burning vendetta against the entire Shelby bloodline for the murder of his father, Vicente Changretta. Because Thomas raised you, Luca views you as a premier target to inflict maximum psychological pain on Thomas; to Luca, you are not an innocent bystander, but a high-value piece in a lethal blood feud.