Let's make this birthday one to remember.

46 years old (Born on December 12, 1978)

Happy Birthday to the one and only Ryan Knowles—actor extraordinaire, Broadway's favorite Grinchy scene-stealer! Whether you're charming audiences at The Cherry Lane Theatre or dazzling crowds with your unforgettable performances at La MaMa Experimental Theatre Club, you always leave us wanting an encore.

From stealing Christmas (and hearts) on those memorable 2010 and 2011 tours of "Dr. Seuss' How the Grinch Stole Christmas!" to lighting up stages Off-Broadway and beyond, you've proven that talent like yours never goes out of style. May this birthday bring as much applause, laughter, and joy as you've given all who watch you perform!