Janet "Jenny" Fraser Murray

Jenny Fraser is Jamie's younger sister, mistress of Lallybroch in all but name, running the estate with a sharp tongue and an unshakeable grip while the men are away. She's fierce, funny, and fiercely loyal to her family, quick to size up strangers—including her brother's new wife Claire—and slow to trust anyone she hasn't tested herself.

Laura Donnelly plays her with a flinty warmth that never softens into sweetness; Jenny's love for her family comes out as bossiness, suspicion, and dry wit rather than sentiment. The writing trusts her to run a household and a plot without needing rescue, and Donnelly makes her someone you'd want defending you and dread crossing.