PHILADELPHIA — Bill Cosby has replaced the law firm overseeing civil litigation around the country linked to accusations he drugged and molested women.

Liner LLP, known for its work in entertainment law, is replacing lawyers with the powerhouse litigation firm Quinn Emanuel Urquhart & Sullivan, Cosby spokesman Andrew Wyatt confirmed Monday.

Litigation department chairwoman Angela Agrusa will now represent Cosby in the defamation and sex-assault lawsuits. Several women have sued Cosby for branding them liars in suits filed in Massachusetts, Pennsylvania and California. Cosby has countersued some of them.

The Liner firm currently represents singer Blake Shelton in a defamation case against a celebrity magazine. The firm also defended the doctor charged with overprescribing painkillers to the late model Anna Nicole Smith.