Christy Walton is an American billionaire philanthropist, best known as the widow of John T. Walton, one of the sons of Walmart founder Sam Walton. After her husband's death in 2005, she inherited his fortune and became one of the richest women in the world. She is recognized for her significant philanthropic contributions, particularly in education, and environmental causes.

Lukas Walton is an American billionaire heir and environmental advocate, best known as the grandson of Walmart founder Sam Walton. He has a significant stake in the retail giant and actively participates in philanthropic efforts focusing on environmental sustainability.

John Mars, heir to the Mars, Inc. confectionery and pet-care empire, is one of America’s wealthiest and most private billionaires, stewarding a family business that spans iconic brands like M&M’s, Snickers, Pedigree, and Royal Canin. Alongside his siblings, he helped expand Mars beyond candy into food and animal health, reinforcing the company’s reputation for secrecy, long-term ownership, and decentralized management. Despite the scale of Mars’ global operations—among the world’s largest privately held companies—John Mars has remained almost entirely out of the public eye, shaping the business through discretion, values-driven governance, and deeply held family traditions.