Guest Stars Katherine Kelly as Permanent Secretary Noah Jupe as Daniel Roper Marta Torné as Mercedes Simona Brown as Grace Buffy Davis as Pearl Fleur Keith as Flight Attendant Kevin O'Loughlin as IEA Officer Gardener Andrei Zayats as Latvian Leader Jorge Suquet as Head Waiter Salvador Oliva as Madrid Waiter Bart Cariss as Tailor Cuco Usin as Waiter David Cornwell as Diner Rami Nasr as Turkish Lawyer