Dennis Kelly nació el 7 de julio de 1943 en Salt Lake City, Utah, Estados Unidos. Fue un actor, conocido por Boss (2011), Lady Blue (1985) y Detroit 187 (2010). Murió el 29 de mayo de 2016.
Played "Cinderella's Father/Understudy for Narrator/Mysterious Man" in "Into the Woods", a musical by Stephen Sondheim and James Lapine (Ahmanson Theatre, Los Angeles, California, USA).
1992 Artisan and After Dark Awards for his work in "Phantom!" at Candlelight Dinner Playhouse, Chicago, Illinois. Also an After Dark Award for his work in "La Cage aux Folles" at Candlelight Dinner Playhouse, Chicago, IL.