Alienated

"Alienated" is the third episode of the second season of Young Justice, and the 29th of the overall series. It aired on May 12, 2012.

Logline
The Team and the Justice League continue to hunt the Kroloteans that have invaded Earth—but the aliens have help from an extremely unexpected source.

Cast and characters
! colspan="3"| Non-speaking roles
 * Tim Curry
 * colspan="2"| G. Gordon Godfrey
 * Miguel Ferrer
 * colspan="2"| Vandal Savage
 * Bruce Greenwood
 * colspan="2"| Batman
 * Logan Grove
 * colspan="2" | Beast Boy
 * Phil LaMarr
 * colspan="2" | Lagoon Boy
 * Stephanie Lemelin
 * colspan="2"| Catherine Cobert
 * Eric Lopez
 * colspan="2"| Blue Beetle
 * Yuri Lowenthal
 * colspan="2" | Aquaman
 * Jesse McCartney
 * colspan="2"| Nightwing
 * rowspan="2"| Nolan North
 * colspan="2"| Superboy
 * colspan="2"| Superman
 * rowspan="2"| Khary Payton
 * colspan="2"| Kaldur'ahm
 * colspan="2"| Black Manta
 * Maggie Q
 * colspan="2"| Wonder Woman
 * rowspan="2"| Kevin Michael Richardson
 * colspan="2"| John Stewart
 * colspan="2" | Martian Manhunter
 * Michael Trucco
 * colspan="2" | Adam Strange
 * Michael T. Weiss
 * colspan="2"| Captain Atom
 * Mae Whitman
 * colspan="2"| Wonder Girl
 * Actor
 * colspan="2"| Bibbo
 * Maggie Q
 * colspan="2"| Wonder Woman
 * rowspan="2"| Kevin Michael Richardson
 * colspan="2"| John Stewart
 * colspan="2" | Martian Manhunter
 * Michael Trucco
 * colspan="2" | Adam Strange
 * Michael T. Weiss
 * colspan="2"| Captain Atom
 * Mae Whitman
 * colspan="2"| Wonder Girl
 * Actor
 * colspan="2"| Bibbo
 * colspan="2"| Captain Atom
 * Mae Whitman
 * colspan="2"| Wonder Girl
 * Actor
 * colspan="2"| Bibbo
 * Actor
 * colspan="2"| Bibbo
 * colspan="3" | Atom (flashback)
 * colspan="3" | Batgirl
 * colspan="3" | Black Canary (flashback)
 * colspan="3" | Brain
 * colspan="3" | Bumblebee
 * colspan="3" | Captain Marvel (flashback)
 * colspan="3" | Doctor Fate (flashback)
 * colspan="3" | Flash (flashback)
 * colspan="3" | Green Arrow (flashback)
 * colspan="3" | Hal Jordan (flashback)
 * colspan="3" | Hawkman
 * colspan="3" | Hawkwoman
 * colspan="3" | Icon
 * colspan="3" | Klarion
 * colspan="3" | Lex Luthor
 * colspan="3" | Plastic Man (flashback)
 * colspan="3" | Queen Bee
 * colspan="3" | Ra's al Ghul
 * colspan="3" | Red Arrow (flashback)
 * colspan="3" | Red Tornado (flashback)
 * colspan="3" | Robin
 * colspan="3" | Rocket
 * colspan="3" | Hawkwoman
 * colspan="3" | Icon
 * colspan="3" | Klarion
 * colspan="3" | Lex Luthor
 * colspan="3" | Plastic Man (flashback)
 * colspan="3" | Queen Bee
 * colspan="3" | Ra's al Ghul
 * colspan="3" | Red Arrow (flashback)
 * colspan="3" | Red Tornado (flashback)
 * colspan="3" | Robin
 * colspan="3" | Rocket
 * colspan="3" | Queen Bee
 * colspan="3" | Ra's al Ghul
 * colspan="3" | Red Arrow (flashback)
 * colspan="3" | Red Tornado (flashback)
 * colspan="3" | Robin
 * colspan="3" | Rocket
 * colspan="3" | Red Tornado (flashback)
 * colspan="3" | Robin
 * colspan="3" | Rocket
 * colspan="3" | Rocket
 * colspan="3" | Rocket

Trivia

 * Other than the shells of the Appellaxian invaders, the Hall of Justice trophy room also houses many items recognizable from the comics:
 * Costumes of Guardian, Firebrand, Wildcat, Green Lantern (Alan Scott), Red Torpedo, Flash (Jay Garrick) and Sandman.
 * The Star Diamond from Justice League of America #4.
 * Kanjar Ro's Slave Ship of Space from Justice League of America #3.
 * The Green Bell of Uthool, the Silver Wheel of Nyorlath and the Red Jar of Calythos from Justice League of America #10.
 * The Key's Key Gun from Justice League of America #41.
 * Libra's scale staff from Justice League of America #111.
 * The Gamma Gong from Justice League of America #4.
 * Doctor Light's refractor from Justice League of America #12.

Unanswered questions

 * How did Tula die?
 * Who is the "Competitor"?
 * What happened to Ocean-Master?