a 15-year-old orphan who joined Zeta in her quest to prove her innocence. She usually acts as an older and wiser sister to Zeta when the NSA wants Zeta back to be the target killing machine and he runs away with her to evade them and don't get caught by the nsa, who often have no idea how to properly blend in with the humans. She sees Zeta as family and refuses to abandon him as she owes him her life. In one episode, it is revealed to Ro that she has a brother. and she is a Synthoid like zeta and female Synthoid in disguise and has the ability to holographically disguise herself as any individual she has seen, as well as create personalized appearances through mixing and matching various physical characteristics. [she sees you and talks to you]