Special Guest Stars Diahann Carroll as June Ellington Guest Stars Sharif Atkins as FBI Agent Clinton Jones Marsha Thomason as FBI Agent Diana Barrigan Gloria Votsis as Alex Hunter Alexandra Daddario as Kate Moreau Noah Emmerich as Garrett Fowler Edoardo Ballerini as Signore Tomassi Co Starring Kelly McCreary as Yvonne Michael Matucci as The Duke Patrick Stephenson as Carabiniere