Michael Cerveris is an American singer, guitarist and actor. He has performed in many stage musicals and plays, including several Stephen Sondheim musicals: Assassins, Sweeney Todd, Road Show, and Passion. He won the Tony Award as Best Featured Actor in a Musical for Assassins.
He was called, by Playbill.com, "arguably the most versatile leading man on Broadway", playing roles from "Shakespeare's Romeo to The Who's Tommy, from the German transsexual rock diva Hedwig in Hedwig and the Angry Inch to the homicidal title character of Sondheim's Sweeney Todd."
Cerveris' most visible television role to date has been as the Observer code-named September in the FOX science fiction television series Fringe. His character, a mysterious man seen attending many unusual events, has appeared regularly during the series and became one of the main characters to bring the story to its end.