"The O.C." star Tate Donovan recently dished to Andy Cohen about the antics of his TV daughter Mischa Barton and her young co-stars on the hit teen series. And he's not the only actor to open up about the behind-the-scenes behavior of a cast mate.
Lots of insiders have been loose-lipped, both on the record and off, when it comes to revealing who of their colleagues are the most demanding and difficult to work with. Here are some of the stars rumored to be divas on set.