Hamato Miwa (2012 TV series)

The 2012 version of Karai is a member of the Foot Clan and teenage daughter of the Shredder.

History
When Karai makes her first appearance in the episode "New Girl in Town," she confronts Leo, who is separate from his brothers. During their first battle, she blinds him while she attacks him. However, afterwards, she leaves him alive. She later runs into him again in an alley and fights him again. They both exchange some banter until Karai holds a sword against Leo's throat, trying to convince him that he's not as good as he appears. She tells him to meet her atop of a building without giving him any more information other than she wants to show him something.

Karai meets with the Shredder, who is not happy that she let Leo live. She tries to lie and say that he escaped, but the Shredder doesn't believe her. He tells her that she must kill him or else. Their scene ends with Karai calling him "Father".

At midnight, Leo meets Karai on top of the building she informed him about earlier. She tells him that they're there to steal a famous katana in a museum. Leo refuses to help her, which upsets her. Before she takes out her dagger, Leo stops her and tells her that he believes that there's good inside her. Upon Snakeweed's attack, she stands there smiling until Leo asks for her help. She throws him a knife and leaves. Whether this was to help him or not is undetermined.

She is recently taking an interest in the Kraang. She tries to convince Shredder to notice it since she believes the Kraang and the turtles are somehow conntected.

She was able to convince the Shredder. The Shredder tells her that she did well. She causes the Foot to investigate the Kraang.

Personality
Karai is very free-spirited and fun though these traits lead her into criminal activities. She is dangerous, but Leo believes there's some good in her. She seems to fear the Shredder just like Bradford and Xever do and she obeys him, but she doesn't appear to respect him.