CSI: Miami has cast Natasha Henstridge in a potentially recurring role, and she will make her first appearance during the season nine finale. (Spoilers after the jump!) The finale will introduce Henstridge as undercover agent Renee Locklear. “We meet her in the course of searching for this missing fugitive and she [initially] appears as another [...] More...
Which I believe makes her the third cast member of Species to be on the CSI franchise; Marg Helgenberger of course is on the mothership show, and Michael Madsen was in the Rob Zombie-directed episode of CSI Miami from last season where Horatio and Jesse went out to L.A.
No, not yet. However, should the show be renewed for a season 10, the producers plan on bringing the character back.