Forget that wide smile and friendly demeanor. RadarOnline.com is reporting Ellen DeGeneres</a>’ reputation as the “Queen of Nice” is a total sham!<br /><br />“Ellen’s public image is that of a sweetie who’s nice to everyone and is a real pussycat,” a source spilled.<br /><br />“But when the cameras aren’t rolling, she treats staffers as if they are her peasants!”<br /><br />“No one is allowed to engage Ellen in conversation or even look her in the eye!” the insider revealed. “She doesn’t even brief the staff about the show anymore!”<br /><br />Insiders claim DeGeneres’ ego is so out of control</a> that when one of her producers was recently asked if she’d support a charity, he said, “Ellen doesn’t work with charities. She IS a big charity!”<br /><br />The Finding Dory star — whose estimated net worth is a staggering $360 million — is also very manipulative, according to on-set insiders.<br /><br />“She picks and chooses people to be nice to when it’s to her advantage,” the insider spilled.<br /><br />“She’ll invite some staffers to fun outings and purposely exclude others to create tension, jealousy and hurt feelings.”<br /><br />Trouble in the talkers’ marriage to Aussie beauty Portia de Rossi,</a> 44, can also trigger an eruption, sources said.<br /><br />“If she’s going through a rough spot with Portia, people really have to duck and cover,” an insider snitched.<br /><br />“Staffers never know what she’ll go off on, or who she’ll target. It’s like walking on eggshells.”