User blog comment:ARTaylor/Batman: Arkham City Released/@comment-71.22.44.15-20111028015228

Here is the full voice Cast: Kevin Conroy - Bruce Wayne/Batman, Thomas Eillot/Hush Mark Hamill - The Joker Tara Strong - Harleen Quinzel/Harley Quinn Tom Kane - Quincy Sharp James Horan - Jack Ryder David Kaye - Com. James Gordon Wally Wingert - Edward Nygma/The Riddler Danny Jacobs - Victor Zasaz Tasia Valenza - Pamela Isley/Poison Ivy Fred Tatasciore - Cyrus Gold/Solomon Grundy Nolan North - Oswald Coppelbot/Penguin Corey Burton - Hugo Strange Kimberly Brooks - Barbara Gordon/Oracle Kari Wahlgren - Vicki Vale Dee Bradley Baker - Ra's Al Ghul Rick D. Wasserman - Basil Karlo/Clayface Maurice LaMarche - Victor Fries/Mr. Freeze, Julian Day/Calendar Man Stana Katic - Talia al Ghul Steven Blum - Waylon Jones/Killer Croc, Roman Sionis/Black Mask Troy Baker - Harvey Dent/Two-Face Peter MacNicol - Jervis Tetch/Mad Hatter Chris Cox - Floyd Lawton/Deadshot, Eddiw Burlow Grey DeLisle - Selina Kyle/Catwoman Quinton Flynn - Dick Grayson/Nightwing Khary Payton - Azreal Roger Rose - William North Duane R. Sheapard - Aaron Cash Crispin Freeman - Tim Drake/Robin Martin Jarvis - Alfred Pennyworth

Additonal Voices were Done by: Carlos Alazraqui Eric Bauza Misty Dini Chris Gardner Michael Gough (II) Joe Holt Audrey Wasilewski

Just learned that Freeman and Kaye will not be in the avengers, but Nightwing will be voiced by Quinton flynn, and the nightwing pack will be released in November.