Ace learned to lie and steal to get by from a young age and keeps the habit into adulthood. He's charming, flirty (with literally anyone he thinks he can get something out of) and willing to go to great lengths for money. Probably has a lot of enemies due to this, but he's adapt at running away before he can suffer any real consequences.
Gets hired by Xavier to spy on Xander, hired by Xander to be his assistant and becomes coworkers and friends with Ximena along the way.