Oprah Winfrey

Oprah Winfrey is a globally renowned media executive, actress, talk show host, television producer, and philanthropist.

She is best known for her talk show, "The Oprah Winfrey Show," which was the highest-rated television program of its kind in history.

Winfrey has been ranked the greatest black philanthropist in American history and was for many years the world's only black billionaire.

She is also North America's first black multi-billionaire.

Winfrey founded her own production company, Harpo Productions, and later launched OWN: Oprah Winfrey Network.

Her influence extends beyond media, as she is recognized for her charitable work and promotion of literature through her book club.