The troubled funnyman has been a regular in the headlines over the last few weeks following numerous arrests, with his most recent brush with cops occurring on Friday (07Dec12) when he was held on a reckless driving charge.
He has now been accused of striking a man with a microphone during his stand-up gig at the Paramount Theater in Seattle earlier this month (Dec12) and the gig-goer has filed a lawsuit.
Carlos Casto-Lino claims he suffered concussion and bruising to his head and is suing the star and bosses of the venue for $250,000 (£156,250), according to TMZ.com.
In video footage filmed at the theatre, Williams can be seen chastising a gig-goer for allegedly attempting to record the show and then hitting him on the head with his microphone.
Williams was detained by police at a gas station in California on Friday (07Dec12), a day after a warrant was issued for his arrest stemming from a police chase in Sacramento last month (Nov12) when he allegedly rode a three-wheeled motorcycle on the sidewalk before speeding away.
He was previously arrested in November (12) on suspicion of battery at a sports bar, and he had another brush with cops last week (02Dec12) for his alleged involvement in a bar brawl in Seattle, Washington.
Williams also shocked fans earlier this month (Dec12) by announcing he is quitting stand-up comedy and cutting short his current U.S. tour, a claim his representative subsequently dismissed.