This article explores the ethics and psychology of AI twins—virtual personas designed with different races or genders for marketing. It examines how these AI identities impact audience trust, bias, and parasocial relationships, while also raising serious ethical questions about authenticity, stereotyping, and representation. Real-world examples such as Lil Miquela, Shudu, FN Meka, and Lu do Magalu highlight both the opportunities and risks of using AI influencers in branding. The piece offers insight into how these digital personas shape consumer perception, representation in media, and the cultural implications for marginalized communities.