Legal Problems Mount for Katt Williams

     SEATTLE (CN) - Katt Williams faces yet another lawsuit, from a fan who claims the comedian hit him in the head with a microphone during a performance, giving him a concussion, and then threatened to shoot him.
     Carlos Castro-Lino claims Williams "had publicly demonstrated signs of mental instability" and should not have been allowed to perform on Nov. 30.
     Williams was sued twice in November. His personal assistant, Melissa Ishage, claimed he hit her, and two weeks later a fan claimed in a class actio n that the comic took his clothes off and tried to fight people in the audience, in a bizarre non-show that lasted only 10 minutes.
     Now Carlos Castro-Lino sued the comedian, whose given name is Micah Sierra Williams, and Seattle Theatre Group, owner of the Paramount Theatre where Williams performed, in King County Court.
     Castro says he was in the third row at Williams' Nov. 30 performance when Williams left the stage carrying a microphone.
     "Williams positioned himself in the fourth row of seats, directly behind Castro. Then, without warning to Castro, Williams struck the back of his head with his microphone. One witness described the assault as a 'baseball swing,'" the complaint states.
     "After assaulting Castro, Williams returned to the stage and directed comments at Castro, telling Castro that he should go home and get a gun and that Williams also had a gun and would be waiting for him upon his return."
     Castro says theater employees witnessed the assault and Williams' verbal threats, but failed to intervene or stop the show.
     After he was assaulted, Castro contacted police who were at the concert investigating other allegations against Williams, the complaint states. Castro says he went to an emergency room to be treated for his injuries.
     "The doctors at Valley Medical Center diagnosed Castro with a concussion and contusions resulting from the assault. Castro was prescribed painkillers to alleviate the severe pain he was experiencing in his head," the complaint states.
     Castro claims the theater knew Williams "posed a danger" to the audience.
     "Prior to the November 30, 2012 assault, Williams had publicly demonstrated signs of mental instability that should have put STG on notice that Williams posed a danger to the audience. For example, Williams was unable to perform his scheduled show at the Paramount on the previous evening, November 29, 2012. Upon information and belief, his inability to perform that evening was caused by heavy drug use, mental instability, or both. Upon information and belief, agents and employees of STG were in contact with Williams on November 29, 2012 and had opportunity to observe his drug abuse and/or mental health problems. Upon information and belief, agents and employees of STG also observed evidence of drug abuse and/or mental instability on the part of Williams prior to the show on November 30, 2012," according to the complaint.
     Castro demands $250,000 from Williams for "extreme emotional distress" and an equal amount from STG for failing to provide adequate security.
     He is represented by Lee H. Rousso.