The 45-year-old matriarch of the Boyle family, Juno is a strong-willed and independent woman who keeps her family in line, balancing tough love and nurturing care, especially towards her children, Johnny and Mary.

A well-made and good-looking 22-year-old, Mary is the elder Boyle child, whose contradictions include her working-class background and interest in higher education, alongside her romantic entanglements with two suitors, Jerry Devine and Charlie Bentham.

The younger brother with a look of indefinite fear, Johnny is marked by his loyalty to Ireland's independence, haunted by his past experiences in battle, and struggles with his physical and emotional scars.

Joxer is Captain Jack Boyle's best friend and drinking companion, often providing distraction and escapism from Jack's family responsibilities while being quick to leave when Juno is present.