S2, E17: When Eva Sinclair's (recurring guest star Maisie Richardson-Sellers) reemergence leaves Rebekah (also played by Maisie Richardson-Sellers) trapped and helpless, Klaus is forced to put aside his mistrust for Freya (recurring guest star Riley Voelkel) in order to save Rebekah's life. Meanwhile, Hayley and Elijah learn more about Eva's violent past from Josephine (recurring guest star Meg Foster), who then makes a startling revelation about Hayley's future. With time running out to save Rebekah, Marcel turns to a reluctant Vincent for his help to take down Eva, but his plan takes an unexpected turn, as Eva will not go down without a fight.