But what we didn't know at the time was which Lois Lane would share the screen with Ruby Rose's Caped Crusader -- Elizabeth Tulloch, who played Lois Lane in the Arrowverse crossover "Elseworlds," or Smallville's Erica Durance, who was recently announced to return to the fan-favorite role for the crossover.
Well, we now have an answer.
On Instagram, Erica Durance shared a picture of herself with a caption that revealed she was "getting ready to rock as Lois." What's more, YVR Shoots has confirmed the actor is headed to Vancouver for the Batwoman portion of the shoot.
"Crisis on Infinite Earths" begins Sunday, December 8 at 8 pm ET/PT on Supergirl, then continues in Batwoman on Monday, December 8 at 9 pm ET/PT and in The Flash on Tuesday, December 10 at 8 pm ET/PT. After the winter hiatus, the crossover will conclude on Tuesday, January 14 in Arrow at 8 pm ET/PT and in DC's Legends of Tomorrow at 9 pm ET/PT.