: Hannah’s sisters; Nina is a fellow lawyer dealing with her own messy romantic life, while Rose is the "heart" of the family, struggling to find her path.
: The matriarch and fierce head of Defoe's who refuses to step down. The Split - Season 1
: The pragmatic lead navigating a professional "split" from her family and a personal one from her husband. : Hannah’s sisters; Nina is a fellow lawyer
: Hannah's husband, whose betrayal becomes the season's emotional focal point. Notable Legal Cases : Hannah’s sisters
The show uses "case-of-the-week" subplots to mirror the characters' internal struggles:
: Hannah's stable marriage to Nathan is rocked when his name appears on a leaked list from Indiana Ray , a hacked extramarital dating site.