Let's make this birthday one to remember.

56 years old (Born on February 28, 1969)

Happy Birthday, Robert Sean Leonard! Whether diagnosing rare diseases alongside Dr. House or delivering memorable quips with unmatched sophistication, nobody does thoughtful charm quite like you. May your celebration be as witty and rewarding as every medical puzzle solved at Princeton-Plainsboro Hospital—minus the grumpy genius roommate constantly raiding your fridge.

From Dead Poets Society’s timeless classroom inspiration to being everyone's favorite moral compass in "House," you've consistently delivered performances that are prescribed viewing on repeat doses. Wishing you endless joy not just today but through countless curtain calls ahead—and may no one ever diagnose boredom when you're around!