30 Highest Grossing Actors Under 30 By Jody Ellis, Stacker News On 2/15/21 at 10:00 AM EST Becoming a successful actor is a long shot at best, and parlaying that career into high-grossing box office stats seems like an impossible dream. But there are plenty of young movie stars who have done just that, establishing themselves as next-level echelons in the film industry, and making their mark long before they hit their mid-life years. In order to determine just who all these Hollywood heavy hitters are and how they line up in the box office, Stacker used January 2020 data from The Numbers to rank the top 30 actors under 30 according to their total domestic box office earnings, in order from lowest to highest. Voice actors were considered, as well, and in addition to the domestic box office, each actor's overall average box office earnings are listed.