Chloe Bennet as Brooke Johnson

Paul Reubens as Elijah Van Dahl
Melinda Clarke as Grace Van Dahl
Justin Mark as Charles Van Dahl
Kaley Ronayne as Sasha Van Dahl

Robin Lord Taylor as Oswald Cobblepot, The Penguin
Anthony Carrigan as Victor Zsasz
Kyle Vincent Terry as Wendell, Headhunter

Cory Michael Smith as Edward Nygma, The Riddler
Erin Richards as Barbara Kean
Camren Bicondova as Selina Kyle, Cat
Drew Powell as Butch Gilzean
Jessica Lucas as Tabitha Galavan
James Frain as Theo Galavan, Azrael
Ben McKenzie as Jim Gordon
Donal Logue as Harvey Bullock

Maggie Geha as Ivy Pepper
Nathan Darrow as Victor Fries, Mr. Freeze
Michelle Veintimilla as Bridgit Pike, Firefly
Benedict Samuel as Jervis Tetch, Mad Hatter
Charlie Tahan as Jonathan Crane, Scarecrow
Cameron Monaghan as Jerome Valeska
Cameron Monaghan as Jeremiah Valeska

Michael Chiklis as Nathaniel Barnes, Executioner
Bradley Darryl Wong as Hugo Strange
Jada Pinkett Smith as Fish Mooney
John Doman as Carmine Falcone
Crystal Reed as Sofia Falcone
James Carpinello as Mario Calvi
Morena Baccarin as Lee Thompkins

David Mazouz as Bruce Wayne
Sean Pertwee as Alfred Pennyworth
Christopher Chalk as Lucius Fox