Bella Thorne will guest star on CBS' long-running mystery drama, 'CSI,' this Sunday, Oct. 19 and in this clip shared by J-14 (via Yahoo!), we see her act as a high school "mean girl" type. The episode ...

'CSI: Vegas' clip: Marg Helgenberger's Catherine Willows is obsessed in 'Koala' episode Catherine Willows (Marg Helgenberger) deals with her concerned boss Paula Newsome (Maxine Roby) in this preview ...