Circle in the Square Theatre, New York Jonathan Groff uses his considerable charisma to embody the late singer with pizzazz in a rousing yet incomplete Broadway show It is more than likely that Jonathan Groff, the star of the new Broadway show Just in Time, has more name recognition in today's New York than Bobby Darin, the midcentury singer whom he plays in this jukebox bio-musical, of sorts. Darin's relative lack o…
