Happiest Place on Earth

Happiest Place on Earth is the tenth episode of the first season of NBC's Justice League. It first aired on December 4, 2018. It is the tenth episode overall.

Synopsis
The League learn that the Legion plan to blow up the entire park of Disneyland. Reunited with their loved ones, they race to California to stop the genocide of 75,000 people.

Starring

 * Ben Affleck as Bruce Wayne/Batman
 * Joseph Gordon-Levitt as Tim Drake/Red Robin
 * Emma Stone as Stephanie Brown/Spoiler
 * Yvonne Strahovski as Kate Kane/Batwoman
 * Jeremy Jordan as Winslow Schott/Toyman
 * Tyler Hoechlin as Clark Kent/Superman
 * Sarah Hyland as Barbara Gordon/Batgirl
 * Todd Stashwick as Roman Sionis/Black Mask
 * Alexander Gould as Dick Grayson/Nightwing
 * Wentworth Miller as Leonard Snart/Captain Cold
 * John Barrowman as Arthur King/Merlyn
 * Tom Ellis as Sebastian Ballesteros/Cheetah
 * Gal Gadot as Diana Prince/Wonder Woman
 * Jesse Eisenberg as Lex Luthor
 * Katie Cassidy as Dinah Lance/Black Canary
 * Grant Gustin as Barry Allen/the Flash
 * Melissa Benoist as Kara Danvers/Supergirl
 * Chris Wood as Mike Matthews/Mon-El

Guest Starring

 * Jeremy Irons as Alfred Pennyworth
 * Floriana Lima as Maggie Sawyer
 * Aaron Ashmore as Jimmy Olsen
 * Zen Gesner as Jim Gordon
 * Paul Blackthorne as Larry Lance
 * Candice Patton as Iris West

Trivia

 * This episode achieved 10.41 million U.S. live viewers.
 * All main cast members appear in this episode.
 * This episode received mixed reviews. It scored 47% on Rotten Tomatoes, a 60 out of 100 on Metacritic, and 6.2/10 on IGN.
 * Guest stars in this episode include Jeremy Irons, Floriana Lima, Aaron Ashmore, Zen Gesner, Paul Blackthorne, and Candice Patton as Alfred Pennyworth, Maggie Sawyer, Jimmy Olsen, Jim Gordon, Larry Lance, and Iris West.
 * This episode is rated TV-14 for D-V.