Yvon, a true triple-threat, had Broadway credits: he appeared as Harry Houdini in the Broadway production of "Ragtime." But almost all of his work was in and around Chicago, from "The Beverly Hillbillies" at Theatre at the Center, to "I Do I Do" to "The Goodbye Girl" at the Drury Lane Theatre to "The Music Man" and "Hairspray" at the Marriott Theatre. Yvon's career began at the Candlelight Dinner Theate and lit up from there. He had an especially happy run as Donny Osmond's understudy in the long-running production of "Joseph and the Amazing Technicolor Dreamcoat."