Guest Stars Kelcy Griffin as Detective Harper Benedict Samuel as Jervis Tetch / Mad Hatter Cameron Monaghan as Jerome Valeska David Thompson as Jonathan Crane / Scarecrow Shiva Kalaiselvan as Lelia John Treacy Egan as Zachary Trumble Co Starring Hank Strong as Lunkhead Ethan Herschenfeld as Captain of the League Jessica Perez as Patrice Tortuga Derrick Simmons as Driver Alexa Don as League of Shadows #1 Kym Gomes as Beatrice Oliver Jillian Marie Sayegh as Uniform #1 Don Hewitt Sr. as Old Jumper Erik Arbouet as Youngster on the Roof Tatyana Rodina as League of Shadows #2
