Downton Abbey stars Michelle Dockery and Laura Carmichael enjoy co-star's 60th birthday in Mayfair : r/DowntonAbbey

Michelle Dockery and Laura Carmichael Play a Game of Who Wore It: Downton Abbey Edition

Downton Abbey's Michelle Dockery is joined by Laura Carmichael on the Today show in New York

Laura Carmichael and Michelle Dockery arrive on the red carpet at the 'Downton Abbey' Season Four cast photo call at Millenium Hotel in New York City on December 10, 2013. UPI/John Angelillo

Michelle Dockery Brings Glamour To Downton Abbey Red Carpet

London - England - Sep 9: Elizabeth McGovern, Michelle Dockery and Laura Carmichael attends the 'World Premiere Of Downton Abbey' in Leicester Square Stock Photo - Alamy

Downton Abbey' stars glam up for launch

Laura Carmichael and Michelle Dockery at the DOWNTON ABBEY - A NEW ERA New York Premiere - Tom + Lorenzo

Downton Abbey's Michelle Dockery's on-screen sister Laura Carmichael is radiant as her bridesmaid

Watch Downton Abbey stars describe the popular series in 60 seconds

Downton Abbey's Michelle Dockery and Laura Carmichael are reunited as former co-stars attend The Human Body after-party at Donmar Warehouse

Downton Abbey's Michelle Dockery reunites with on-screen sister, Laura Carmichael

Downton Abbey - Wikipedia

Downton Abbey's Michelle Dockery and Laura Carmichael Reunite at Schiaparelli's Paris Show