Elizabeth Olsen Welcomes First ChildElizabeth Olsen and husband Robbie Arnett have their first baby; personal milestone for the Marvel star.Sources (2)Elizabeth Olsen & Husband Robbie Arnett Welcome Their First Child Togetherjustjared.comElizabeth Olsen steps out with newborn after quietly welcoming first child with husband Robbie Arnettpagesix.comUpdated Aug 17, 2026