Cate Blanchett

as Lady Gertrude Chiltern

Minnie Driver

as Miss Mabel Chiltern

Rupert Everett

as Lord Arthur Goring

Julianne Moore

as Mrs. Laura Cheveley

Jeremy Northam

as Sir Robert Chiltern

Peter Vaughan

as Phipps

Ben Pullen

as Tommy Trafford

Marsha Fitzalan

as Countess