Let's make this birthday one to remember.

54 years old (Born on June 08, 1971)

Happy Birthday, Mark Feuerstein! We still get laughs picturing your comical charm as Dr. Hank Lawson in "Royal Pains"—proving once and for all that life-saving doctors can also cure a bad mood with humor alone. Whether it's the quirky on-screen antics or behind-the-scenes shenanigans, you've kept us thoroughly entertained.

And just when we thought you'd peaked at owning Hamptons house calls, you dazzled again recently by showcasing your directing prowess while starring in Netflix's “The Baby-Sitters Club,” proving old-school babysitting drama is nothing without Dad jokes delivered perfectly dry. Thanks for sharing such immense talent—and relentlessly good hair—with audiences everywhere!