Death of a Duo

Death of a Duo is the twelfth episode of the fourth season of NBC's The Batman. It first aired on March 5, 2012. It is the fifty-first episode overall.

Synopsis
Harley learns the Joker has kidnapped Two-Face and races to get him back. Barbara and Ben decide to further their relationship, but expose themselves to Gordon. Jervis and Clayface feel alone without Killer Croc, after he left, and decide to make one last move to go out with a bang. Bruce's campaign for CEO improves and James Jr. thanks Maggie and Allen for all they've done for him. Meanwhile, Cameron decides to kidnap James.

Starring

 * Ben Affleck as Bruce Wayne/Batman
 * Sarah Hyland as Barbara Gordon/Batgirl
 * Zen Gesner as James Gordon
 * Nathan Gamble as James Gordon Jr.
 * Jared Leto as the Joker
 * Keri Lynn Pratt as Cat Grant
 * Brian McManamon as Basil Karlo/Clayface
 * Tom Hardy as Victor Payne/Bane
 * Maggie Geha as Pamela Isely/Poison Ivy
 * Tyler Hoechlin as Clark Kent/Superman
 * Cory Michael Smith as Edward Nygma/Riddler
 * Floriana Lima as Maggie Sawyer
 * Nolan North as Thomas Elliot/Hush
 * Andrew Stewart-Jones as Chris Allen
 * Benedict Samuel as Jervis Tetch/Mad Hatter
 * Cillian Murphy as Jonathan Crane/Scarecrow
 * Adewale Akinnuoye-Agbaje as Killer Croc
 * Liam Neeson as Ra's al Ghul
 * Nicholas D'Agosto as Harvey Dent/Two-Face
 * David Zayas as Sal Maroni
 * Thomas Haden Church as Cameron van Cleer/Killer Moth
 * Margot Robbie as Harley Quinn
 * Stephen Amell as Oliver Queen

Guest Starring

 * Jake Thomas as Ben Scott
 * Jeremy Irons as Alfred Pennyworth

Trivia

 * This episode achieved 16.39 million U.S. live viewers.
 * Kerri Lynn-Pratt, Maggie Geha, Tyler Hoechlin, Liam Neeson, Nicholas D'Agosto, and David Zayas do not appear in this episode as Cat Grant, Poison Ivy, Clark Kent, Ra's al Ghul, Two-Face, and Sal Maroni.
 * This episode received critical acclaim. It scored a 91% on Rotten Tomatoes, a 93 out of 100 on Metacritic, and 9.9/10 on IGN.
 * Guest stars in this episode include Jake Thomas and Jeremy Irons as Ben Scott and Alfred Pennyworth.
 * This episode is rated TV-14 for D-S-V.