Playbill News: Roundabout Sets Lineup of Cast and Creatives for Broadway's Assassins So here's the final listing, and it's pretty awesome. The latest surprise: James Clow, a former student I taught at Syracuse University. I saw Denis O'Hare do Guiteau at the reading that Roundabout held after the show was cancelled in 2001 - what a great bit of casting. All in all, it's a smashing group. John Carrafa was to've done the musical staging originally - wonder what happened to him?