This review synthesizes research on "Cultural impact and ethical considerations in the acceptance and rejection of AI influencers" to address the complex interplay of cultural contexts and ethical debates shaping public reception of AI-generated virtual personas. The review aimed to evaluate cultural factors influencing acceptance, benchmark ethical frameworks, analyze audience trust and engagement, compare governance mechanisms, and deconstruct socio-psychological dynamics of rejection. A systematic analysis of interdisciplinary studies from 2010 to 2024, spanning Asia, Europe, Latin America, and North America, was conducted using qualitative, quantitative, and mixed-method approaches. Findings reveal that cultural legitimacy and hybrid aesthetics critically affect acceptance, with regional variations in emotional engagement and parasocial relationships; ethical concerns center on transparency, accountability, and manipulation, yet governance frameworks remain fragmented and regionally inconsistent; audience trust depends on perceived authenticity and narrative coherence, though skepticism persists due to artificiality and disclosure effects; and rejection is driven by ethical objections, identity threats, and societal harm perceptions. These findings converge to highlight the necessity of culturally sensitive, ethically robust frameworks that integrate authenticity and trust dynamics. The review underscores the imperative for interdisciplinary research and policy development to guide responsible AI influencer deployment and governance across diverse cultural landscapes...