M'gann M'orzz or Megan Morse, also known as
Miss Martian1
Miss Martian, is a Martian and a superhero who appears in DC comics. She the niece of J'onn J'onzz/Martian Manhunter. She is known to be the member of Young Justice. Her catchphrase is "Hello, Megan!" whenever she realizes something or makes a mistake.

As a member of the Majestic Guardians, her skills prove to be quite an asset. These include-

Flight- Megan has demonstrated the ability to fly great distances.

Shapeshifting- She can change her form completely to alter her physical appearance, clothing and even mimic other people. However, she finds male forms more difficult, implying that transforming into women is easier.

Camouflage- She can change the appearance of her form (and her clothes) to match her surroundings, making her almost invisible.

Telepathy- She has the ability to link the team up during their missions, so that their communications cannot be intercepted. She has the ability to enter people's minds in order to recover lost memories, and can also engage in psychic combat within her own mind.

Telekinesis- Megan has used telekinesis to manipulate many objects with her mind.

Her Bioship acts as a mean of transportation for the team.

Her love interest is the former Young Justice member, Conner Kent/Superboy, who became a member of the Magna Force. Her uncle also acts as a mentor of the Magna Force.