Basil Hallward: Artist, values beauty, worried about Dorian's influence.
Lord Henry Wotton: Cynical, hedonistic, heavily influences Dorian.
Sibyl Vane: Actress, represents innocence, destroyed by her relationship with Dorian.
James Vane: Sibyl's brother, seeks vengeance for her death.
Conclusion
The novel explores the perils of vanity, the corrupting influence of others, and the dangers of a hedonistic lifestyle. Dorian's tragic end serves as a cautionary tale about the costs of living a life devoid of moral responsibility.