Let's make this birthday one to remember.

39 years old (Born on January 24, 1986)

Happy Birthday, Mischa Barton! From the sunny shores of Orange County to captivating audiences worldwide as Marissa Cooper on "The O.C.," you've given us unforgettable teen drama moments—complete with iconic fashion choices and emotional cliffhangers that still have fans reaching for tissues (and popcorn).

Your journey from Newport Beach's favorite troubled teen to versatile actress has been impressive—and let's face it, nobody does dramatic exits quite like you do! Here's hoping your birthday is filled with fewer plot twists than a typical day in Marissa’s life but just enough excitement to keep things interesting. Cheers to another fabulous year ahead!