[5] Chamberlin has since acted on Broadway, having been nominated for three Tony Awards,[6] and has an extensive list of film[7] and television credits.

Additional Broadway theatre credits include Triumph of Love, Abe Lincoln in Illinois, Chicago, The Ritz and Wicked.

Chamberlin's most recent work includes the role of Aron Malsky in the NBC prime-time series Heroes.

He also made an appearance in a Law and Order: Special Victims Unit episode titled "Redemption" where he played a man named Roger Berry.

In 2019, Chamberlin appeared as Mr. Mushnik in the Pasadena Playhouse production of Little Shop of Horrors alongside George Salazar, Mj Rodriguez, Amber Riley and Matthew Wilkas.

[15] In 2022, Chamberlin appeared as Nicely-Nicely Johnson in Guys and Dolls at the John F. Kennedy Center for the Performing Arts.