Glenn Close (Albert Nobbs), Janet McTeer (Hubert Page), Mia Wasikowska (Helen Dawes), Pauline Collins (Margaret 'Madge' Baker), Maria Doyle Kennedy (Mary), Mark Williams (Sean Casey), James Greene (Patrick), Brendan Gleeson (Dr. Holloran), Jonathan Rhys Meyers (Viscount Yarrell), Phoebe Waller-Bridge (Viscountess Yarrell), Phyllida Law (Mrs. Cavendish), Kenneth Collard (Monsieur Pigot), Judy Donovan (Madame Pigot), Michael McElhatton (Mr. Moore), Bronagh Gallagher (Cathleen), Emerald Fennell (Mrs. Smythe-Willard), John Light (Mr. Smythe-Willard), Angeline Ball (Mrs. Gilligan), Philip O'Sullivan (Mr. Gilligan), Brenda Fricker (Polly), Antonia Campbell-Hughes (Emmy), Aaron Johnson (Joe), Serena Brabazon (Mrs. Moore), Bonnie McCormack (Miss Shaw), Katie Long (junge Küchenhilfe), Daniel Costello (Mr. Sweeney), Dolores Mullally (Milady)
