David's close friend whose death he witnesses. She is later resurrected by Amahl Farouk and reborn in Amy Haller's body, playing a major role in David's S3 plan and cult.
Their sibling bond is tested by David's mental state and Lenny's own struggles, culminating in a tragic yet unbreakable connection across both seasons.
Syd and Lenny bond over their shared status as outcasts, offering each other emotional support amid David's escalating crises.
Explore the full interactive character relationship map of Legion