69 years old (Born on December 21, 1955)
Happy Birthday, Jane Kaczmarek! Your portrayal of Lois in "Malcolm in the Middle" remains legendary—no one else could deliver a hilarious yet terrifying mom glare quite like you. Whether chasing down mischievous boys or masterfully handling Hal's antics, your comedic timing and fierce wit made every episode unforgettable.Beyond Malcolm, you've continued to charm audiences with your versatility and warmth. Your recent roles remind us why we fell for your talent: sharp humor paired effortlessly with genuine heart. Here's hoping this birthday brings fewer chaotic family moments than Lois endured—but just as many laughs! Enjoy celebrating another fantastic year ahead!