https://www.tvline.com/casting-news/arrow-spoilers-episode-100-susanna-thompson-returning-moira-753323/
'Arrow' Spoilers: Episode 100 - Susanna Thompson Returning As Moira
Sep 29, 2016 - Susanna Thompson will return as Moira Queen for Episode 100 of The CW's 'Arrow.'
episode 100susanna thompsonarrowspoilersreturning