Let's make this birthday one to remember.

40 years old (Born on October 11, 1985)

Happy Birthday, Michelle Trachtenberg! From battling vampires as Dawn Summers on "Buffy the Vampire Slayer" to navigating teenage espionage in "Harriet the Spy," you've always brought charm and wit to every role. Your ability to portray characters who are both relatable and delightfully quirky has made you unforgettable.

May your birthday be filled with fewer supernatural threats than Sunnydale offered, but just as much excitement and laughter. Here's hoping this year brings even more success—though topping saving the world alongside Buffy might be tough! Keep shining bright; you're timelessly awesome (and thankfully vampire-free). Cheers to another fantastic chapter ahead!