Here's a look at some of the richest former child stars today. While Bloomberg previously estimated her wealth at more than $1 billion, Forbes now values her net worth at around $700 million, making her one of the richest entertainers in Hollywood. Today, she and her husband Tony Ressler are co-owners of the NBA's Atlanta Hawks, with Ressler's fortune estimated to be around $8 billion. Forbes previously estimated his crypto fortune at between $700 million and $1 billion, making him one of the industry's earliest success stories. Mary-Kate and Ashley Olsen© Disney General Entertainment Con Few child stars successfully transitioned into fashion quite like Mary-Kate and Ashley Olsen.