The Batman Season 6 (2008-2009)

This is the true season finale, what if it involves Teen Titans?

Premieres
June 21, 2008-November 8, 2008

Characters

 * Bruce Wayne/Batman (Rino Romano) - a member of the Justice League
 * Dick Grayson/Robin (Daryl Sabara) - the 2nd sidekick to Bruce Wayne in this version, he is made leader of the Teen Titans in 2012, 4 years after the Joining invasion
 * Barbara Gordon/Batgirl (Danielle Judovits) - a college graduate, at age 22
 * Alfred Pennyworth (Alastair Duncan) - Bruce's trustworthy butler
 * Lucius Fox (Louis Gossett, Jr.)

GCPD

 * Commissioner James Gordon (Mitch Peliggi) - trusts Batman
 * Sgt. Harvey Bullock (Danny DeVito) - doesn't like Batman very much
 * Detective Renee Montoya (Maria Canals) - partners with Bullock
 * Sarah Eissen Gordon (B.J. Ward) - James Gordon's 2nd wife, ever since Gordon was divorced
 * Clancy O'Hara (Steve Vennovich) - Irish chief of GCPD, working with Gordon as a friend and ally
 * Mackenzie "Hardback" Bock (Daniel Riordan) - head of Gotham Police Unit, sometimes wary of Batman
 * Detective Ethan Bennett (Steve Harris) - now regained the trust of others and back into GCPD

Justice League

 * Clark Kent/Superman (George Newbern) - Batman' best friend since they worked together to stop Luthor
 * Oliver Queen/Green Arrow (Chris Hardwick) - a member of the League, and mentor to Speedy
 * Barry Allen/Flash (Charlie Schlatter) - talks to Batman about his rogues all the time, he has a sidekick named Kid Flash
 * Hal Jordan/Green Lantern (Dermot Mulroney) - a member of the League and the Green Lantern Corp, he is also Robin's idol
 * Katar Hol/Hawkman (Robert Patrick) - a member of the League
 * J'onn J'onzz/Martian Manhunter (Dorian Harewood) - a member of the League
 * Diana Prince/Wonder Woman (Susan Eisenberg) - a princess of Paradise Island, she is a mentor to Donna Troy/Wonder Girl
 * Aquaman (Christian Slater) - king of Atlantis and mentor to Aqualad

Teen Titans

 * Roy Harper/Speedy (Crawford Wilson) - sidekick of Green Arrow, and a close friend to Dick Grayson/Robin
 * Wally West/Kid Flash (Eric Bauza) - sidekick of the Flash, and best friend of Dick Grayson/Robin
 * Garth/Aqualad (Yuri Lowenthal) - sidekick of Aquaman
 * Donna Troy/Wonder Girl (Lacey Chalbert) - sidekick of Wonder Woman, and shares a brother-sister relationship with Dick Grayson/Robin

Allies

 * Kathy Kane/Batwoman (Emmanule Chirqui) - a wealthy heiress and former circus performer

Villains

 * Jack Napier/Joker (Kevin Michael Richardson) - Batman's arch-nemesis
 * Harvey Dent/Two-Face (John DiMaggio) - former district attorney who blamed Batman for his disfigurement caused by Sal Maroni
 * Pamela Isley/Poison Ivy (Pierra Coppola) - Barbara Gordon's former friend
 * Team Penguin:
 * Oswald Cobblepot/Penguin (Tom Kenny) - leader
 * Drury Walker/Killer Moth (Jeff Bennett) - second-in-command
 * Waylon Jones/Killer Croc (Ron Perlman)
 * Ragdoll (Jeff Bennett)
 * Garfield Lynns/Phosphorus (Jason Marsden) - still devastated after his break up with Jane Blaisdale, and kept burning the money
 * Mark Desmond/Blockbuster (Kevin Michael Richardson)
 * Victor Fries/Mr. Freeze (Clancy Brown)
 * Jervis Tech/Mad Hatter (J.P. Manoux) - Barbara's colleague who's obsessed with Alice in Wonderland, he always tries to ask Barbara out on dates, but always fails, he refers to Barbara as "Barbie"
 * Hugo Strange (Richard Green)
 * Selina Kyle/Catwoman (Gina Gershon)
 * Legion of Doom:
 * Lex Luthor (Clancy Brown) - leader
 * Giganta (Kath Soucie)
 * Gorilla Grodd (Fred Tatasciore)
 * Sinestro (Miguel Ferrer)
 * Cheetah (Cree Summer)
 * Solomon Grundy (Kevin Grevioux)
 * Brainiac (Jonathan Frakes)
 * Edward Nigma/Riddler (Robert Englund)
 * Scarecrow (Charlie Adler)
 * Toyman (Richard Green)
 * Black Manta (Michael Dorn)
 * Bizarro (George Newbern)
 * Captain Cold (Troy Baker)
 * Ra's al Ghul (Graham McTavish) - leader of the League of Shadows
 * Talia al Ghul (Cote DePablo) - Ra's al Ghul's daughter
 * Ubu (Arnold Vosloo) - Ra's al Ghul's bodyguard