Character Arc
Jane is Maggie's mother, a recurring presence whose relationship with her daughter adds another generational layer to the show's portrait of family and care. Warm but not without friction, she represents the home that Maggie is both drawn back to and trying to grow beyond, and her scenes deepen our understanding of where Maggie comes from. Sally Phillips brings a practised comic touch that lets the character land jokes and tenderness in the same breath.
Through Jane, the series explores how families navigate a loved one's mental health over the long term, the worry, the habits, and the love that can express itself awkwardly. She is neither a saviour nor an obstacle but something more lifelike, a parent doing her imperfect best, and the writing affords her the same care it extends to the younger characters rather than reducing her to a punchline.
Jane's appearances punctuate Maggie's story with reminders of continuity and history, the sense that the friendship at the centre of Big Mood exists within a wider web of relationships. Her presence helps the show widen its lens beyond the two leads, situating Maggie and Eddie's bond inside the families and pasts that shaped them.
