Dr. Tan is a certified Grief Specialist, certified Life success coach, global speaker, best-selling author, founder of the International Childhood Cancer Charity , and a retired medical oncologist.

Maria Mbanga-Mazvimavi is a Women and Girl Child Empowerment Advocate, Community Builder, Leader, Philanthropist and Motivational Speaker.

David Walden Walker chose to work with and be a member of The International Childhood Cancer Charity because he wants to make a difference and realized that ICCC does make that difference.