Kate is Eugene's mother, a strong-willed homemaker who manages the household with dedication and acts as an emotional anchor for her family, particularly her husband Jack.

Jack is the hardworking patriarch of the family, balancing multiple jobs to support his loved ones while maintaining close relationships with his children and guiding them with wisdom.

Blanche is Kate's widowed sister who lives with the Jerome family due to financial difficulties, dealing with the challenges of raising her two daughters and relying on her family's support.

Stanley is Eugene's older brother, who serves as a mentor and role model for Eugene while facing his own struggles with employment and personal responsibilities.

Nora is Blanche's ambitious and spirited teenage daughter, who dreams of a career in Broadway and grapples with her place in the family amidst unresolved grief and a quest for independence.

Laurie is Blanche's younger daughter, a studious child with a heart condition, who is often overprotected by her mother, causing tension with her sister Nora.