Primetime television stars Nathan Fillion and Tim Daly, the reigning voices of Green Lantern and Superman, respectively, join an exciting group of actors reprising their famed cartoon roles in Justice League: Doom, an all-new entry in the popular series of DC Universe Animated Original Movies due in early 2012 from Warner Home Video. We have two new photos from this upcoming adventure featuring Green Lantern and Superman, which you can check out below.

Justice League: Doom Photo #1
Justice League: Doom Photo #2
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Justice League: Doom finds Superman, Wonder Woman, Flash, Green Lantern, Martian Manhunter, Cyborg and Batman on their heels when a team of super villains discover and implement the Dark Knight's "contingency plans" for stopping any rogue Justice League member. The story is inspired by Mark Waid's much-heralded "JLA: Tower of Babel."

Nathan Fillion, the star of ABC's hit TV drama Castle, made his debut as Green Lantern/Hal Jordan in the recent Green Lantern: Emerald Knights. Nathan Fillion made his initial DCU bow as the voice of Steve Trevor in the 2008 hit Wonder Woman.

Currently headlining the cast of ABC's popular Private Practice, Tim Daly originated the title character's voice in the landmark cartoon, Superman The Animated Series. He has reprised the role in two DCU films: the 2009 extravaganza Superman/Batman: Public Enemies and the 2010 thriller Superman/Batman: Apocalypse.

In addition to current primetime stars Nathan Fillion and Tim Daly, the cast is a grand reunion of the original group of actors who provided the voices of the Justice League for the cartoon of the same name and its follow-up, Justice League Unlimited. Reprising their roles are Kevin Conroy (Batman: The Animated Series) as Batman, Michael Rosenbaum (Smallville) as Flash, Susan Eisenberg (Superman/Batman: Apocalypse) as Wonder Woman and Carl Lumbly (Alias) as J'onn J'onzz/Martian Manhunter. Bumper Robinson (A Different World) joins the cast as Cyborg.

The Justice League faces two sets of villainous teams in the film - The Royal Flush Gang and a sextet of notable evildoers. The latter group includes three voice acting alumni of the Justice League animated series: Phil Morris (Smallville: Salvation) as Vandal Savage, Olivia d'Abo (Green Lantern: First Flight) as Star Sapphire, and Alexis Denisof (First Knight) as Mirror Master. Also opposing our heroes are Carlos Alazraqui (Batman: Under the Red Hood) as Bane, Paul Blackthorne (Disney's a Christmas Carol) as Metallo, and Claudia Black (Stargate SG-1: Unending) as Cheetah.

David Kaufman (Danny Phantom: Eye for an Eye) also reprises his Justice League role of Jimmy Olsen.

The film is executive produced by Bruce W. Timm (Batman: Under the Red Hood), and directed by Lauren Montgomery (Batman: Year One), who is also credited as producer alongside Alan Burnett (Superman/Shazam!: The Return of Black Adam). Justice League: Doom is the final script from the late Dwayne McDuffie (All-Star Superman). Casting and dialogue direction is once again in the capable hands of Andrea Romano (Batman: Under the Red Hood; Wonder Woman).

Warner Home Video will premiere the Justice League: Doom trailer during its presentation at New York Comic Con on Friday, October 14 from 3:00-4:00 p.m. in the IGN Theater. Also premiering during that session will be the DC Showcase: Catwoman animated short that is attached to Batman: Year One, the next DC Universe Animated Movie (streeting October 18).