Let's make this birthday one to remember.

46 years old (Born on February 12, 1979)

Happy Birthday, Jesse Spencer! From chasing medical mysteries on "House, M.D." to bravely fighting fires in "Chicago Fire," you've managed an impressive résumé of saving lives—both fictional and audience boredom-related. We suspect your masterful Aussie charm might secretly diagnose dullness as a condition you're completely immune to.

May you celebrate another year defying logic and surviving symptoms like dramatic hospital scenes or intense firefighter rescues without mussing up that perfect hairstyle one bit. Here's hoping generosity fills your day just like the endless stream of tricky diagnoses Dr. Chase brilliantly solved—with ease, wit, style—and never-ending good looks! Cheers!