Syl

X5-701, or "Syl", is one of the twelve X5s who successfully escaped from Manticore in 2009. Zack told Max that Syl had a long list of boyfriends and claimed to have bad luck with love.

Helping Max
Syl, along with Krit, joined Max, Zack, Logan, and Lydecker in an attack against Manticore after the death of her sister Tinga.

Behind the Scenes
Syl was planned to reappear in "Freak Nation", but Nicki Aycox was unavailable and a new character named Cece was created.