Mercy

Mercy  is Lex Luthor's assistant and bodyguard. and has a cybernetic arm.

Personality
Mercy seems to be a very loyal, caring and protective bodyguard to Luthor. She performs multiple tasks that range from driving Luthor around to dressing him up and safeguarding his life.

Physical appearance
Mercy is a Caucasian female with brown eyes and light brown hair. She wears a business suit with a red tie and a short skirt. She has at least one cybernetic arm with a built-in gun.

2010
When Lex Luthor was called upon to deal with a peace treaty in North and South Rhelasia, he was accompanied by his bodyguard, Mercy. At first she acted solely as his silent personal assistant, but when Cheshire and Sportsmaster attacked, she revealed herself to have a cannon stored in a cybernetic arm, and took an assassin down.

Mercy accompanied Lex when he met with Superboy in East Potomac Park.

When the Light decided to finalize their plans of coercing Superboy, Miss Martian and Artemis, Mercy made sure Luthor was safe. The evening did not go as planned, and Mercy had to fight off Aqualad to allow her boss to escape with the unconscious Queen Bee.