Guest Stars Sam Littlefield as Mouse Christina Wolfe as Julia Pennyworth Gabriel Mann as Tommy Elliot Brianne Howey as Reagan Alex Zahara as Dr. Butler Malia Pyles as Parker Torres Co Starring Rachel Maddow voices Vesper Fairchild Sean Kuling as Agent Whelan Chad Riley as Librarian Janet Glassford as Nurse Janet Amos Stern as Arkham Guard 2 Linden Banks as Professor John Carr Jason Bell as Arkham Guard 1 Tamara Daroshin as Grad Student 2 Tyson Arner as Grad Student 1 Favour Onosemuode as Gina Tom Lim as Tony Kim
