TMDb/The Testaments TV Aunt Lydia's chilling origin story unfolds in The Testaments' "Stadium," revealing her transformation from teacher to Gilead enforcer. April 30, 2026 AceShowbiz - The Testaments delivers one of its most chilling episodes yet in "Stadium," where Aunt Lydia takes center stage, revealing the harrowing origins of her role within Gilead's oppressive regime. The episode provides a powerful narrative shift as Lydia Clements, the woman who becomes Aunt Lydia, narrates her descent from an American schoolteacher into a ruthless enforcer of the new order.