Knock, Knock/Cast

Main Cast

 * Ben McKenzie as Jim Gordon
 * Donal Logue as Harvey Bullock
 * Michael Chiklis as Nathaniel Barnes
 * David Mazouz as Bruce Wayne
 * Sean Pertwee as Alfred Pennyworth
 * Robin Lord Taylor as Oswald Cobblepot
 * Erin Richards as Barbara Kean
 * Camren Bicondova as Selina Kyle
 * Cory Michael Smith as Edward Nygma
 * James Frain as Theo Galavan
 * Jessica Lucas as Tabitha Galavan
 * Chris Chalk as Lucius Fox
 * Nicholas D'Agosto as Harvey Dent
 * Zabryna Guevara as Sarah Essen
 * Drew Powell as Butch Gilzean

Guest Cast

 * Richard Kind as Aubrey James
 * Chelsea Spack as Kristen Kringle
 * Cameron Monaghan as Jerome Valeska
 * Will Brill as Arnold Dobkins
 * Stink Fisher as Aaron Helzinger
 * Dustin Ybarra as Robert Greenwood
 * Thom Sesma as Barthel
 * Maria Thayer as Scottie Mullen