Let's make this birthday one to remember.

40 years old (Born on March 12, 1984)

Happy Birthday, Jaimie Alexander! From battling frost giants in "Thor" to keeping us on the edge of our seats in "Blindspot," you've proven that tattoos and hammers are equally effective superhero accessories. Your fierce portrayal of Lady Sif has forever etched you into Marvel lore—though we're still waiting for your own spin-off (hint hint!).

Whether you're terrifying us at a creepy rest stop or dazzling audiences with your action-packed roles, your talent shines brighter than Thor's hammer. May this birthday bring you as much excitement and adventure as you've given fans worldwide. Keep kicking butt and staying awesome!