Sir Robert Chiltern is a successful Government minister, well-off and with a loving wife. All this is threatened when Mrs Cheveley appears in London with damning evidence of a past misdeed. Sir Robert turns for help to his friend Lord Goring, an apparently idle philanderer and the despair of his father. Goring knows the lady of old, and, for him, takes the whole thing pretty seriously.
Lord Goring

Sir Robert Chiltern

Gertrude, Lady Chiltern

Mabel Chiltern

Mrs Cheveley

Lord Caversham

Lady Markby
Phipps

Lady Marchmont
Lady Basildon
Vicomte de Naujac
Mason