The physician is the fourth of five people charged in connection with Perry’s death to plead guilty. Sentencing is scheduled for December 3.

Iwamasa, who admitted in court documents to administering the ketamine on the day that Perry died, pleaded guilty in August 2024 to one count of conspiracy to distribute ketamine causing death, the DOJ said. He is scheduled to be sentenced in November.

The reverberations of Matthew Perry’s overdose death continued Wednesday when one of the doctors who supplied the Friends star with ketamine entered a long-expected guilty plea to four counts of distribution.