As the maniacal, chaos-loving Alice, Rachel Skarsten is set to be one of the show's earliest villains. Skarsten is probably one of the most familiar faces in the cast, having previously played Tamsin on Lost Girl and Queen Elizabeth I in later seasons of Reign. Plus, she's actually been a DC superhero before she took on this baddie role: she played Dinah Lance on the 2002 superhero series Birds of Prey.