9) Jason Bateman
The critically acclaimed 54-year-old director, actor, and producer Jason Bateman started his impressive acting career back as a child star in 1981 with the role of James Cooper Ingalls in the TV show Little House on the Prairie. He was around 11 or 12 years old at the time. Since then the actor has come a long way and has received several prestigious accolades, including a Primetime Emmy Award.
From his earlier acting days, Bateman looks absolutely different now. He is married to Amanda Anka and the two have two children together. He is currently best known for playing the role of Martin "Marty" Byrde in the Netflix crime drama series Ozark.
Over the years, Jason Bateman has also been a part of several notable movies and TV shows, including The Outsider, Arrested Development, Air, Fool's Paradise, Horrible Bosses, The Switch, and many more.
10) Mara Wilson
The 35-year-old writer and actress Mara Wilson became one of the most well-known child stars after she portrayed the titular role of Matilda Wormwood in the 1996 movie Matilda.
As a child actor, she has been a part of a few other movies and TV shows, entailing A Simple Wish, Mrs. Doubtfire, Balloon Farm, Thomas and the Magic Railroad, Melrose Place, and a few others, before taking a long break from acting to solely focus on her writing career.
As a 35-year-old, Mara Wilson looks completely different from her early days in the entertainment business and is almost unrecognizable. In recent times, she played the role of Sara in the 2021 short film Pre-Emptive Defence. She has also played the voice role of Jill Pill in the critically acclaimed animated series BoJack Horseman.
Apart from the aforementioned child stars, some other unrecognizable child stars include Haley Joel Osment, Aaron Carter, Soleil Moon Frye, Angus T. Jones, Orlando Brown, Thora Birch, Edward Furlong, Danny Tamberelli, Anna Chlumsky, Blake McIver Ewing and several others.