Barry Allen's decision to save his mother, the subsequent creation of Flashpoint, and his attempt to erase the damages it resulted in continue to wreak havoc with members of the Arrowverse. During "The Flash's" portion of the Invasion! crossover, it was revealed the woman in Martin Stein's (Victor Garber) visions is his daughter, Lily Stein (Christina Brucato). A daughter that Stein did not have prior to Flashpoint. Thanks to today's casting news, it seems she'll be sticking around for a while. The actress confirmed as much on her Twitter account.
Brucato, last seen in "Orange is the New Black," has been officially added as a recurring character to "Legends of Tomorrow." It would not have been shocking to see the show quickly wrap-up the newest member to the Stein clan during there crossover, but it now appears Martin will have to deal with being a daddy for at least a while longer. Of course, whether Clarissa Stein (Isabella Hofmann) is still married to Martin and is Lily's mother remains a mystery for another day.
While it's unlikely tonight's "Arrow" will address Stein's daughter in-depth, based off the description of the crossover finale on "Legends of Tomorrow," it seems likely everyone will learn more about Stein's fatherly responsibilities soon.
Airing Thursdays at 8 pm ET/PT on The CW, “DC’s Legends of Tomorrow” stars Brandon Routh as the Atom, Victor Garber and Franz Drameh as Firestorm, Caity Lotz as White Canary, Maisie Richardson-Seller as Vixen, Dominic Purcell as Heatwave and Nick Zano as Citizen Steel.