8. Dakota & Elle Fanning, 22 & 16 ($21 Million)

These two beautiful siblings have a combined net worth of $21 million, and have captured the hearts of millions of fans from around the world. Dakota has an estimated net worth of $16 million. As a child actress, she appeared in high-profile films such as Man on Fire, War of the Worlds, and Charlotte’s Web. Her younger sister by four years, Elle, broke into show business as a child star about three years after her ascendant sibling.