Earthlings

"Earthlings" is the second episode of the second season of Young Justice, and the 28th of the overall series. It aired on May 5, 2012.

Logline
Miss Martian, Superboy, Beast Boy and Adam Strange arrive on the distant planet Rann to stop the alien infiltration of Earth at its source and clear the Justice League's name.

Title
"Earthlings" are individuals that hail from Earth. In this episode, it refers to the Zeta Squad (Superboy, Miss Martian, Beast Boy) and Adam Strange, who visit Rann and therefore are earthlings to its inhabitants.

Cast and characters
! colspan="3"| Non-speaking roles
 * Logan Grove
 * colspan="2"| Beast Boy
 * Danica McKellar
 * colspan="2"| Miss Martian
 * Nolan North
 * colspan="2"| Superboy
 * Michael Trucco
 * colspan="2"| Adam Strange
 * Actor
 * Alanna
 * Morgan Sheppard
 * Sardath
 * Actor
 * Alanna
 * Morgan Sheppard
 * Sardath
 * Morgan Sheppard
 * Sardath
 * Sardath
 * colspan="3" | Batman (photo)
 * colspan="3" | Hawkwoman (photo)
 * colspan="3" | John Stewart (photo)
 * colspan="3" | Martian Manhunter (photo)
 * colspan="3" | Superman (photo)
 * colspan="3" | Wonder Woman (photo)
 * colspan="3" | Martian Manhunter (photo)
 * colspan="3" | Superman (photo)
 * colspan="3" | Wonder Woman (photo)
 * colspan="3" | Superman (photo)
 * colspan="3" | Wonder Woman (photo)
 * colspan="3" | Wonder Woman (photo)

Continuity

 * The events of this episode coincide with "Happy New Year".
 * As a response to being called an "earthling", Superboy mentions his half-Kryptonian heritage, which he discovered in "Agendas".
 * As Beast Boy wreaks havoc in a Krolotean ship, Superboy tells him that he may have changed his mind about monkeys. Superboy has had an aversion to them ever since Young Justice #2: "Monkey Business".
 * This episode reveals the fate of Beast Boy's mother and Miss Martian's idol, Marie Logan, who appeared in "Image".
 * Apparently, Miss Martian does to the Krolotean the same thing she did to Psimon in "Image".

Trivia

 * Alanna speaks "Thank Ulthoon". In the comics, Ulthoon the Tornado Tyrant is a Rannian wind spirit, one of the components of Red Tornado.

Cultural references

 * To distract the Rannians, Adam Strange recites the second stanza of Lewis Carroll's Jabberwocky from Through the Looking-Glass, and What Alice Found There, and uses some of the White Rabbit's lines from Alice's Adventures in Wonderland.

Unanswered questions

 * Why did Superboy break off his relationship with Miss Martian?
 * Why did Miss Martian hug Beast Boy so enthusiastically?
 * Why did Queen Bee have Marie Logan murdered?
 * What did Miss Martian really do that Krolotean to extract infromation?
 * What did Miss Martian discover from the Krolotean?