Let's make this birthday one to remember.

66 years old (Born on March 22, 1959)

Happy Birthday, Matthew Modine! From surviving boot camp as Private Joker in "Full Metal Jacket" to navigating the eerie mysteries of Hawkins Lab in "Stranger Things," you've proven that helmets and lab coats suit you equally well. Your iconic grin and sharp wit have made cinematic history—though we're still not sure if your drill sergeant would approve of birthday cake.

Here's wishing you another year filled with memorable roles, endless applause, and fewer run-ins with Demogorgons. May your celebrations be as timelessly cool as your filmography—and remember: even Private Joker deserves a day off from push-ups!