Though they go by different surnames ― Hill swapped his middle name as a stage name before hitting it big ― Hill is Feldstein’s proud older brother. (She’s 10 years younger, to be exact.)
While arriving for the Golden Globes — where she was nominated for her role in Booksmart — Feldstein shared how happy she was over her brother’s recent engagement, calling him “my best friend in the world” while talking to Us Weekly.
Of course, they’re not the only celebs who come from the same family. Below, 18 celebrities you might not have known have famous siblings.