Characters: 

Sir Robert Chiltern - Is the plays main character who is a successful politician with a loving wife and might lose it all because of a misdeed. 

-> Sir Robert Chiltern is an accomplished politician, he is considered as an ideal husband and great politician to everyone in his surroundings. Sir Robert is very wealthy and a powerful man in London at that time and the only person who can take him down is Mrs. Cheveley who has a letter of his crime.Sir Robert doesn't want to reveal his past from his wife. Lady Chiltern's loves and worships his perfect image; Sir Robert is so desperate to remain with her that he will even agree to resign from government. Torn between his true and ideal selves, Sir Robert suffers from a nervous temperament throughout the play.

Lady Gertrude Chiltern - Is a beautiful Greek twenty-seven year old woman who loves his husband and think he is the "ideal husband". She is active in his career and would do anything for him.

-> Lady Chiltern is the play's heroine. She is very supportive of her husband's political career and a loving wife. Lady Chiltern certainly embodied these characteristics, and unlike Sir Robert, Lady Chiltern is not self-divided. She is a poised, charming, and an ideal society wife, but Lady Chiltern is naïve when it comes to the rumors around her and her husband. She is so blinded by her love for Sir Chiltern that she doesn't believe anybody else but him. She is Mrs. Cheveley's ready victim. They have known each other for years and have hated each other since early years in school. So, when she sees Mrs. Cheveley back in town and talking secretly to her husband, she is not happy. Toward the end of Act I, she delivers a speech to Sir Robert that introduces the idea of the "ideal husband" and how much she cares for him. As a woman, Lady Chiltern loves in the worship of an ideal man, a man who is a rolemodel for both her and society. 

Mrs. Cheveley - She is a well dressed "villan" in the play. She values wealth and power above all. She is the manipulative lady who gets what she wants because she blackmails Sir Chiltern. 

Lord Goring - He is a very clever philosopher who tries to help Lady Chiltern.

Mabel Chiltern -  An exemplar of English prettiness, Mabel, Sir Robert's younger sister,

Lord Caversham - He is Lord Goring's father. He is a serious, stuffy but respectable gentleman and wants the best for his son but he is old fashion opposed to his which likes modern living.

Lady Markby - She is a popular woman with grey hair and always visits Lady Chiltern.