Justice League Unlimited Dark Heart (Season 1, Episode 10)
TV Episode | 23 min | Animation, Action, Adventure

Justice League Unlimited

Dark Heart (Season 1, Episode 10)

TV Episode | 23 min | Animation, Action, Adventure

Most of the League battles with powerful alien nanotechnology but, realize that the waves of self-replicating robots cannot be simply destroyed. The diminutive Atom shrinks himself to stop the robots from the inside.

Director

Dan Riba

Writers

Warren Ellis (written by) | Jerry Siegel (character created by: Superman) | Joe Shuster (character created by: Superman) | Bob Kane (character created by: Batman) | William Moulton Marston (character created by: Wonder Woman)

Producers

Dwayne McDuffie | Bruce Timm | James Tucker

Composers

Kristopher Carter | Michael McCuistion

Editor

Joe Gall

Casting Director

Andrea Romano

See all filmmakers & crew (58)

Edit Released

Updated Dec 11, 2004

Release date

Dec 11, 2004 (United States)

Contacts

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Cast	+ Add Cast
8 cast members

Name	Known for
Kevin Conroy Batman / Bruce Wayne / Pilot (voice) Batman / Bruce Wayne / Pilot (voice) See fewer	Batman: The Killing Joke (2016)
Susan Eisenberg Wonder Woman / Princess Diana (voice) Wonder Woman / Princess Diana (voice) See fewer	Justice League (2001)
Carl Lumbly J'onn J'onzz / Martian Manhunter / Pilot (voice) J'onn J'onzz / Martian Manhunter / Pilot (voice) See fewer	The Adventures of Buckaroo Banzai Across the 8th Dimension (1984)
George Newbern Superman / Clark Kent / Soldier / Pilot (voice) Superman / Clark Kent / Soldier / Pilot (voice) See fewer	Adventures in Babysitting (1987)
John C. McGinley The Atom / Ray Palmer (voice) The Atom / Ray Palmer (voice) See fewer	Scrubs (2001)
J.K. Simmons General Wade Eiling (voice) General Wade Eiling (voice) See fewer	Whiplash (2014)
Michael Beach Commander / Billy (voice) Commander / Billy (voice) See fewer	Mayor of Kingstown (2021)
Cathy Cavadini Katie / Girlfriend (voice) Katie / Girlfriend (voice) See fewer	An American Tail: Fievel Goes West (1991)