elizabeth mcgovern on the set of “talamasca: the secret order” (2024) | 📸: elizabeth lyons reily

elizabeth mcgovern, laura carmichael, hugh bonneville, & dominic west behind the scenes of “downton abbey: the grand finale” (2024) | 📸: arty froushan

elizabeth mcgovern & hugh bonneville on the set of “downton abbey: the grand finale” (2024) | 📸: hugh bonneville

elizabeth mcgovern & hugh bonneville in “downton abbey: the grand finale” (september 2025) | 📸: focus features

elizabeth mcgovern as cora crawley, countess of grantham, on the set of “downton abbey,” which first premiered 15 years ago today. | left: season 1 (2010) & right: “downton abbey: the grand finale” (2025) | 📸: nick briggs & rory mulvey

elizabeth mcgovern, hugh bonneville, michelle dockery, & laura carmichael on the set of “downton abbey: the grand finale” (2024) | 📸: una maguire

elizabeth mcgovern, hugh bonneville, michelle dockery, laura carmichael, & the cast of “downton abbey,” promo photoshoot for “downton abbey: the grand finale” (2025) | 📸: zoe mcconnell

elizabeth mcgovern & hugh bonneville on the set of “downton abbey: the grand finale” (2024) | 📸: rory mulvey/focus features