Born in Guangzhou, China, in 1961, Angela Leong On Kei is a self-made Macau casino executive, politician, and powerful businesswoman. Her early life was marked by financial hardship; her father passed away during her childhood, forcing her mother to become the family breadwinner. Leong received a limited formal education, which instilled in her a strong belief that 'diligence can make up for the lack of talent.'

Seeking better opportunities, she moved to Macau and worked multiple part-time jobs, often taking three to four shifts back-to-back, to sustain herself and support her family. The pivotal moment in her life came in 1986 when she met the legendary Macau casino tycoon, Stanley Ho, while working as a dance teacher. This relationship quickly blossomed into a professional and personal partnership, positioning her to become a central figure in the world’s largest gambling market.

Angela Leong quickly transitioned from her role as a dance teacher to a powerful executive within the sprawling empire of Stanley Ho. She entered the management of Sociedade de Jogos de Macau (SJM), the casino operator that held Macau's gambling monopoly until 2002. Demonstrating burgeoning business talent, she ascended to the roles of Managing Director and Director of SJM Holdings, one of the core companies in Macau’s multi-billion dollar gaming sector.

Her influence extends beyond the casinos: she successfully entered electoral politics in 2005, becoming a directly elected Member of the Legislative Council of Macau (a legislator). She used this political platform to represent casino industry interests and mobilize support among the working class and casino employees, becoming a highly effective and visible public figure. Through SJM, she oversees some of Macau's most lucrative and iconic casinos, cementing her self-made status as one of Asia’s most influential billionaire women and a key player in the city's political and economic governance.

Angela Leong is known for her dedication to philanthropy and social welfare in Macau and Hong Kong. Her commitment to giving back reflects her own humble beginnings and her belief in the power of education and community support.

She is actively involved in numerous charitable organizations, serving as the Chairperson of Po Leung Kuk (a major charitable organization in Hong Kong) and founding the Macau Sanshui Communal Association to provide services to new immigrants. Her giving focuses on education, healthcare, and community development. Her political role is also a form of social contribution, representing the working-class interests that fuel Macau’s casino economy, ensuring a link between the city’s prosperity and the welfare of its residents.

Angela Leong commands the powerful, sophisticated style of a Macau casino executive and political figure. Her attire is consistently impeccable, featuring high-end, tailored power suits and elegant designer gowns suitable for major casino openings and political functions. Her look is characterized by a confident, polished glamour, often accessorized with magnificent, large statement jewelry that reflects her vast wealth and status.

Her lifestyle is one of opulence and high-level engagement. She maintains residences in exclusive Macau and Hong Kong neighborhoods. Her luxury is the command of some of the world's most profitable casinos and her unique position as a political figure representing the industry. Her life is a blend of high-stakes business decisions, legislative work, and high-society philanthropy, making her a formidable figure in Asian business.