de Rothschild ( Sacha Gervasi ) 2 Ms Louise Delamere ( Stephen Mangan) 2 Count & Countess Edmondo di Robilant ( Maya ) 2 Mr. & Mrs. Eric Fellner ( Laura Bailey ) 1 Mr. Ralph Fiennes 1 Mr. Charles Finch 2 Ms. Sydney Finch ( Prince Kyril Saxe-Coburg ) 2 Mr. & Mrs. Cohn Firth ( Livia Giuggioli ) 2 Mr. Tom