Young Justice: Season 1
2010 · 26 episodes · ★ 8.2
What Season 1 of Young Justice
Robin, Aqualad, Kid Flash, Superboy, Miss Martian, and Artemis form Young Justice -- and find out whether they have what it takes to be a proven hero.
Season 1 Episodes
1x01 Independence Day (1)
Robin, Aqualad, and Kid Flash break into Cadmus and find that it is being run by Genomorphs.
Directing: Jay Oliva · Writing: Greg Weisman · Starring: René Auberjonois, Crispin Freeman, Alan Tudyk, George Eads
1x02 Fireworks (2)
The sidekicks find a clone of Superman known as Superboy. They free him from Cadmus' control, while battling Blockbuster.
Directing: Sam Liu · Writing: Greg Weisman · Starring: René Auberjonois, George Eads, Miguel Ferrer, Mark Rolston
1x03 Welcome to Happy Harbor
After Speedy declines to join the new team, Robin, Aqualad and Kid Flash fear Young Justice is just a big joke…while new member Miss Martian fears there's no room for her to be part of it. So when the four heroes and Superboy come up against Mister Twister, it looks like all their fears have just been realized…
Directed by: Jay Oliva · Written by: Kevin Hopps · Starring: Jeff Bennett, John de Lancie, Stephanie Lemelin, Khary Payton
1x04 Drop-Zone
Young Justice goes on its first official mission under Batman, while trying to determine which of them will lead the team.
Directing: Christopher Berkeley · Writing: Andrew Robinson · Starring: Arnold Vosloo, Danny Trejo, Miguel Ferrer, Nick Chinlund
1x05 Schooled
Superboy's anger over his non-relationship with Superman is getting out of control. He refuses to train with Black Canary, and when the team faces an opponent that even the Justice League had trouble defeating, the Boy of Steel goes rogue.
Directing: Michael Chang · Writing: Nicole Dubuc · Starring: Peter MacNicol, Kevin Michael Richardson, Vanessa Marshall, Bruce Greenwood
1x06 Infiltrator
Green Arrow's niece, Artemis, joins Young Justice and must save a bright young scientist from the League of Shadows.
Directing: Jay Oliva · Writing: Jon Weisman · Starring: Oded Fehr, Tara Strong, Alan Tudyk, Keone Young
1x07 Denial
When the team investigates the disappearance of Kent Nelson (formerly Doctor Fate), the scientific-minded Wally West is forced to confront his disbelief in magic while battling Abra Kadabra and Klarion the Witch Boy, for the ultra-powerful Helmet of Fate.
Directing: Michael Chang · Writing: Tom Pugsley · Starring: Ed Asner, Jeff Bennett, Kevin Michael Richardson, Cree Summer
1x08 Downtime
After a disastrous mission with the team, Aqualad returns to Atlantis to choose between a life on the surface world or one beneath the waves with the Aquagirl of his dreams. But other forces at play may make Aqualad's decision for him.
Directing: Jay Oliva · Writing: Kevin Hopps · Starring: Cree Summer, James Arnold Taylor, Kath Soucie, Roger Craig Smith
1x09 Bereft
Young Justice discovers that they have forgotten the last six months of their lives, including each other and a final fateful mission in Bialya. The team turns to Miss Martian to recover their memories, before it is too late for Superboy.
Directed by: Michael Chang · Written by: Nicole Dubuc · Starring: Alan Tudyk, Marina Sirtis, Bruce Greenwood
1x10 Targets
Red Arrow is on his own against the world's most dangerous assassins in preventing the League of Shadows from starting a war, until he is forced to make an unlikely alliance with someone even more dangerous. Aqualad fails to convince Red Arrow to ask the team for help.
Directing: Christopher Berkeley · Writing: Andrew Robinson · Starring: Yuji Okumoto, Masasa Moyo, Kevin Michael Richardson, Nick Chinlund
1x11 Terrors
Superboy and Miss Martian go undercover inside Belle Reve Penitentiary.
Directing: Jay Oliva · Writing: Greg Weisman · Starring: Dave Franco, James Remar, Sarah Shahi, Keith Szarabajka
1x12 Homefront
When Mount Justice itself is attacked, can Artemis and Robin (the two teens without super-powers) save the Team (or even themselves) from the unknown invaders?
Directing: Michael Chang · Writing: Jon Weisman · Starring: Jeff Bennett, Alyson Stoner, Kelly Hu, Nolan North
1x13 Alpha Male
Already exhausted and rattled after a home turf invasion of The Cave, the team learns that Aqualad - their friend and leader - withheld vital information that put them all at risk. When Batman sends the Team and new "den-mother" Captain Marvel to India to investigate bizarre reports of armed animals attacking human beings, can Aqualad pull his fractured team together?
Directing: Jay Oliva · Writing: Tom Pugsley · Starring: Dee Bradley Baker, Corey Burton, Rob Lowe, Bruce Greenwood
1x14 Revelation
When Plant Creatures attack major cities around the world, the team is eager to join the fight alongside the Justice League. Instead, Batman assigns them a still more dangerous task - taking out the plants' masters: a secret society of super- villains: the Injustice League!
Directing: Michael Chang · Writing: Kevin Hopps · Starring: Bruce Greenwood, Dee Bradley Baker, Steve Blum, Alyssa Milano
1x15 Humanity
The team is on the hunt for Red Tornado, determined to find out once and for all whether the robot was the mole - even if it means kidnapping new friend Zatanna and dragging her along on their quest!
Directing: Matt Youngberg · Writing: Greg Weisman · Starring: Jeff Bennett, Rob Lowe, Peter MacNicol, Vanessa Marshall
1x16 Failsafe
When the Justice League is defeated during an alien invasion, the Team has to step up and fill their mentors shoes.
Directing: Jay Oliva · Writing: Nicole Dubuc · Starring: Jeff Bennett, Kevin Michael Richardson, Masasa Moyo, Nicole Dubuc
1x17 Disordered
Superboy's "Sphere" goes through a surprising change, revealing a connection to the forever people of New Genesis.
Directing: Michael Chang · Writing: Andrew Robinson · Starring: Dee Bradley Baker, Grey DeLisle, Kevin Michael Richardson, Vanessa Marshall
1x18 Secrets
It's Halloween. Artemis and Zatanna are in Manhattan for a girls' night out. There, they encounter the deadly Harm, who has a secret.
Directing: Jay Oliva · Writing: Peter David · Starring: Ben Diskin, Masasa Moyo, Kevin Michael Richardson, Chad Lowe
1x19 Misplaced
When every adult on the planet disappears, only the team, Zatanna, and Billy Batson are left to defeat the five most powerful sorcerers on Earth. In the end, Zatanna officialy joins the team and Zatara becomes the new Doctor Fate.
Directing: Michael Chang · Writing: Greg Weisman · Starring: Robert Ochoa, Bruce Greenwood, Dee Bradley Baker, Corey Burton
1x20 Coldhearted
Wally West comes oh-so-close to fulfilling his birthday wish to finally fight alongside the Justice League. Instead, a massively disappointed Kid Flash is taken off the mission and tasked with a simple delivery job. But a few deadly surprises await the birthday boy along the way.
Directing: Victor Cook · Writing: Jon Weisman · Starring: Cree Summer, Bruce Greenwood, Steve Blum, Adrian Pasdar
1x21 Image
A covert operation against Queen Bee in Qurac forces Miss Martian to finally face her greatest fears and her biggest secrets. But will she reveal those secrets to her friends—or allow what she's hiding to take down the entire team?
Directing: Jay Oliva · Writing: Nicole Dubuc · Starring: Alan Tudyk, Bruce Greenwood, Logan Grove, Vanessa Marshall
1x22 Agendas
Superboy returns to Project Cadmus, where he learns the top-secret genetics lab may have created another Super-clone.
Directed by: Michael Chang · Written by: Kevin Hopps · Starring: Alan Tudyk, George Eads, Dee Bradley Baker, Jeff Bennett
1x23 Insecurity
Red Arrow's return undercuts Artemis' confidence, while the team's mission to track down Sportsmaster threatens to expose her darkest secrets.
Directing: Jay Oliva · Writing: Peter David · Starring: Alan Tudyk, Peter MacNicol, Nick Chinlund, Jeff Bennett
1x24 Performance
The Team goes undercover at the Haly International Traveling Circus to locate a thief stealing weapons technology across Europe. But a thief isn’t all they find…
Directing: Michael Chang · Writing: Jon Weisman · Starring: Adam Baldwin, Clancy Brown, Stephen Root
1x25 Usual Suspects
The Team gets a new member and a new mission – a mission that may finally expose all the Team’s secrets... and all their lies!
Directed by: Jay Oliva, Tim Divar · Written by: Kevin Hopps · Starring: Dave Franco, Nick Chinlund, Kelly Hu, Crispin Freeman
1x26 Auld Acquaintance Season Finale
The Team finally learns the identity of the traitor in their midst, forcing a battle against an enemy more dangerous than any they’ve ever faced before!
Directed by: Michael Chang, Lauren Montgomery · Written by: Greg Weisman · Starring: Jeff Bennett, Nick Chinlund, Crispin Freeman, Kelley Troy
Season 1 Cast
Jesse McCartneyDick Grayson / Robin / Nightwing (voice)26 episodes
Stephanie LemelinComputer (voice)26 episodes
Danica McKellarMarie Logan / Megan Wheeler (voice)26 episodes
Jason SpisakWally West / Kid Flash (voice)26 episodes
Bruce GreenwoodBatman / Rumaan Harjavti (voice)18 episodes
Kevin Michael RichardsonMartian Manhunter / David Reid / Green Lantern (voice)11 episodes
Crispin FreemanGuardian (voice)9 episodes
Lacey ChabertZatanna Zatara (voice)8 episodes
Masasa MoyoCat Grant (voice)7 episodes
Vanessa MarshallBlack Canary (voice)7 episodes
Alan TudykPsimon / Oliver Queen (voice)6 episodes
Kelly HuPaula Crock (voice)6 episodes
Thom Adcox-HernandezKlarion (voice)4 episodes
Peter MacNicolProfessor Ivo / M.O.N.Q.I. (voice)3 episodes
Oded FehrL-2 (voice)3 episodesAll Seasons
Season 22012 · 20 ep. · 
Season 32019 · 26 ep. · 
Season 42021 · 26 ep. · Where to Watch Season 1 of Young Justice
It is currently not available on any streaming platform in Spain.
Frequently Asked Questions
How many episodes are in Young Justice Season 1?
Young Justice Season 1 has 26 episodes.
When did Season 1 of Young Justice premiere?
Aired on November 26, 2010.
Where to watch Young Justice season 1?
It is not currently available on any subscription platform in Spain.
What is the best episode of Season 1?
According to the audience rating on TMDB, episode 1x02, "Fireworks (2)", with a 8.4.