Isma is a 28-year-old Muslim hijabi woman and the oldest of the three Pasha siblings. Following the early death of her mother, she put her personal ambitions aside to raise her younger twin siblings, taking on multiple jobs to provide financial stability. Now pursuing a PhD in sociology in Amherst, Massachusetts, she is highly pragmatic and protective of her family. Her strong sense of obligation sometimes creates emotional distance between her and her sister.

Aneeka is a 19-year-old law student at the London School of Economics who lives in London with her twin brother, Parvaiz. She exhibits fierce loyalty to her family paired with a headstrong personality. While she diligently performs her daily prayers, she shows an ambivalent attitude toward traditional conventions when they conflict with her personal goals.

Parvaiz is a 19-year-old greengrocer's assistant and aspiring sound engineer living in London. Unlike his strong-willed twin sister, he is gentle and heavily influenced by the people around him. Lacking a university scholarship and job prospects, he struggles with a crisis of masculinity and an intense longing to understand the father he never knew.

Karamat is the opportunistic British Home Secretary. Coming from a Pakistani background, he has built a highly successful political career by vocally distancing himself from his Muslim roots and adopting uncompromising integrationist policies. Nicknamed "The Lone Wolf," he prioritizes public service and his political image above personal affiliations.

The 24-year-old son of the British Home Secretary. Raised in an affluent, secular environment, he works in management consultancy but frequently takes time off to travel. Possessing polished manners and charm, he is initially oblivious to the struggles faced by practicing British Muslims.

A powerfully built British Muslim residing in London who secretly recruits young men for ISIS. He presents a glamorous facade to exploit the vulnerabilities of isolated youths. By offering a fabricated sense of brotherhood, he effectively turns recruits against their families and home country.

The absent father of Isma, Aneeka, and Parvaiz. He abandoned his family multiple times to participate in militant conflicts abroad, eventually dying in custody while being transported to Guantanamo Bay. His history as a jihadi fighter casts a long shadow over his children's lives.

An Irish-American woman and highly successful interior designer with international stores bearing her name. Often considered the most admired Westminster wife, she maintains a strong-willed demeanor and frequently clashes with her husband over his political rigidity and lack of empathy.

A traditional, pious neighbor living on Preston Road who acts as a grandmother figure to the Pasha siblings. She maintains a warm, culturally rich home and steps in to provide housing for the twins after Isma relocates to the United States.

Isma's former adviser from the London School of Economics who now teaches in Amherst. She serves as a mentor figure to Isma, helping her settle into the United States and offering personal advice regarding her interactions with the Lone family.

The daughter of the British Home Secretary. Raised in an affluent environment alongside her brother Eamonn, she exhibits an independent mindset and actively challenges her father regarding his controversial political statements.

A neighbor and long-time friend of the Pasha family. She stands out from the rest of the community by possessing the courage to publicly contradict the dominant media narratives regarding the Pasha siblings.