Jon Jon most recent projects include Class of '09,  on Hulu, as well as the Amblin feature film  The Last Voyage of Demeter. Previous roles include Maurice in the ABC/Disney+  live-action Beauty and the Beast with H.E.R.  He is currently lending his vocal talents to the ongoing Nickelodeon series Transformers: Earthspark as well as Trese on Netflix. Other popular roles have been Dr. Richard Hanover in Ratched, Ariel Augustus,The Grand Chancellor of the Warlocks on American Horror Story: Apocolypse., Modesto Cunanan in American Crime Story: The Assassination of Gianni Versace , and the Confederation Magistrate on  Star Trek: Picard. Over the years he has appeared on several television shows, films, commercials and stage productions.

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In his recent stage career, he was on Broadway with the transfer of London's West End Revival of Miss Saigon  playing the Engineer. A role for which he was nominated and received many awards. On Broadway he was nominated for a Drama Desk Award and was given a Theater World Award. In London's West End, he was nominated for an Olivier Award, and won 2 What's On Stage Awards among many others.