A former Siegfried and Roy confidant has made explosive allegations, and it's resulted in a lawsuit that has stunned the Las the Vegas strip.

Just weeks ago, the famous Las Vegas entertainers were celebrating Roy Horn's remarkable recovery from the tiger attack that nearly took his life. But now come shocking legal claims that Roy was secretly afraid of Siegfried.

"Extra" obtained the lawsuit filed by Horn's former bodyguard, who claims Siegfried refused to hire licensed doctors for Roy.

The suit claims Roy was once so scared of Siegfried that he asked his bodyguard for an emergency cell phone and a knife to protect himself. The bodyguard also claims in the lawsuit that Siegfried forced Roy to take medicine even when he begged not to.

In an interview, Horn said he went to a German hospital last summer because he "was getting too much pain medication here, and I needed to totally cleanse my body."

The bodyguard, who is suing Siegfried for emotional distress, claims he was forced to quit his job. As for the legendary entertainers, Siegfried and Roy had no comment.