Allison Mack, the actress most known as plucky computer-whiz sidekick, Chloe Sullivan, on Smallville has confirmed that she will NOT be returning to the show as a series regular in its tenth and final season. She has, however, confirmed that she will instead be returning as a recurring guest character to clear up Chloe's remaining story in the Smallville universe.
“It’s amazing to think that Chloe Sullivan and I have been one in the same for over a third of my life,” says Mack in an exclusive statement. “I’m truly humbled by the love and loyalty of all the fans whose enthusiasm has carried me — along with a cast and crew which has become my second family — over the past 9 and a half years. Out of respect for the amazingly loyal fans and the place I will always have in my own heart for Chloe, I’m coming back for several episodes next season to tie up Chloe’s Smallville legacy properly."
Well, it looks like we don't have much left to see of Chloe. This is a definite confirmation that this season is going to be unlike any the show has seen before.