An Ideal Husband
Lady Basildon and Mrs. Marchmont
Relatively indistinguishable from each other, these two ladies fill out the party scene and provide us with some background information on the main characters. These women let us know that Lady Chiltern is respectable, that her husband's a dream, and that Mrs. Cheveley is not a member of the in-group. Their presence helps put the pressure on Sir Robert as someone who gets plenty of attention.