Thomas John Giuliano II (born February 9, 1969), known professionally as Tom Scharpling, is an American comedian, television writer, producer, music video director, voice actor, and radio host. He is best known for hosting the weekly Internet radio call-in comedy program The Best Show with Tom Scharpling (formerly The Best Show on WFMU), the voice of Greg Universe in the animated series Steven Universe and its sequel series Steven Universe Future, and for acting as a writer/executive producer fo ...