Guest Stars James Patrick Stuart as Valentin Cassadine Carolyn Hennesy as Diane Miller Kathleen Gati as Liesl Obrecht Tristan Rogers as Robert Scorpio Uncredited Charles Shaughnessy as Victor Cassadine Constance Towers as Helena Cassadine Jay Clay as Ace Prince-Cassadine Joey Clay as Ace Prince-Cassadine Emma Samms as Holly Sutton Billy Gallo as Watkins Charles Ambrose as Ambrose Jeff Griggs as WSB Agent Hursley