In Episode 504, entitled “A Head of Her Time,” The CW series Legends of Tomorrow, Sara (Caity Lotz) is called away to Star City on business and leaves Ava (Jes Macallan) in charge of the Waverider and the Legends. At the same time, the team must take on their latest Encore, Marie Antoinette (Courtney Ford), while John Constantine (Matt Ryan) must confront someone from his past, in order to move forward. At a recent L.A. press day for the series, Collider was invited (along with a handful of other media outlets) to chat with the cast and executive producers, …