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In most respects, 90210 lead Shenae Grimes couldn't be more different from her franchise predecessor Shannen Doherty: instead of coming across as a Midwestern fish out of water in Beverly Hills, she's already tanned, styled, and starved within an inch of her life (and it's only three weeks in). And then there is the smiling — always, the smiling! However, according to the New York Post, Grimes may have taken a page from Doherty when it comes to on-set behavior, and it sounds like she's not giving her coworkers much to smile about:

THERE'S a new bad girl on "90210," and it's not Brenda Walsh, played by Shannen Doherty, who ruled as the show's queen of mean during its first incarnation. Doherty has since cleaned up her tough act, but the new CW show's newbie, Shenae Grimes, who plays Annie Wilson, isn't taking cues from her tamed-down predecessor. Show sources told Page Six that Grimes was "tormenting everyone on set" and "acts rude to the cast, crew and extras." Our insider told us Grimes even once yelled at an unassuming guest star, "Who the hell are you?" and often spits out comments like "This is my show - everyone else is riding my coattails."

Should we expect Shenae's antics to become the subject of a shocking Silver blog exposé, or will all the bad behavior be swept away in a surge of babydaddy-related mystery tonight? We'd advise Grimes to take her cues from onscreen grandmother Lucille Bluth: gratuitous insults can be done right, but only with better lines and a martini glass in hand. [Photo Credit: Michael Desmond/The CW]