Neil Patrick Harris
(Nightwing (voice)) ,
Kelly Hu
(Ms. Li (voice)) ,
Jason Isaacs
(Ra's al Ghul (voice)) ,
Jensen Ackles
(Red Hood / Jason Todd (voice)) ,
Carlos Alazraqui
(Chi Chi / Thug #1 / Baton (voice)) ,
Robert Clotworthy
(Leon / Thug (voice)) ,
Gary Cole
(Bobo / Commissioner Gordon / Shot / Guard (voice)) ,
John DiMaggio
(Joker (voice)) ,
Brian George
(Ra's Assistant (voice)) ,
Bruce Greenwood
(Batman / Bruce Wayne (voice)) ,
Phil LaMarr
(Rick / Bulk (voice)) ,
Jim Piddock
(Alfred (voice)) ,
Kevin Michael Richardson
(Tyler Bramford (voice)) ,
Andrea Romano
(Reporter #1 (voice)) ,
Dwight Schultz
(Freddie / Drug Dealer (voice)) ,
Fred Tatasciore
(Mercenary #1 / Amazo / Guard (voice)) ,
Wade Williams
(Black Mask (voice)) ,
Keri Tombazian
(Reporter #2 (voice)) ,
Vincent Martella
(Robin / Jason Todd (voice)) ,
Alexander Martella
(Young Robin / Jason Todd (voice))