Dr. Salvador Plasencia, a physician charged along with four others in the death of actor Matthew Perry, has pleaded guilty to his role in the substance abuse that contributed to the "Friends" star's tragic passing.

Plasencia, also known as "Dr. P," pled guilty to four counts of distribution of ketamine, according to a copy of the plea agreement obtained by USA TODAY. The physician faces up to 40 years in prison for the offenses.

In August 2024, Plasencia was charged alongside Jasveen Sangha, whom the Department of Justice previously referred to as "The Ketamine Queen" of North Hollywood, and the pair faced 18 criminal counts for allegedly "distributing ketamine to Perry during the final weeks of the actor’s life."

5 people charged in Matthew Perry death, including 'Friends' actor's doctor, assistant

Other co-conspirators named in the case were Perry's live-in assistant Kenneth Iwamasa, Dr. Mark Chavez and Erik Fleming, the latter of whom was described as Perry's acquaintance.