William Daniels is crediting fans for helping him feel youthful ahead of his milestone 99th birthday. "Hard to believe I'm turning 99 tomorrow!" the Boy Meets World alum, 98, wrote via X on Monday, March 30, alongside a video of himself. "I'm so grateful that staying connected with my fans has been so fulfilling in my later years." Daniels added that while he is "taking a pause on long-distance travel" and can't make it to in-person events, he is still available to connect with fans online. The actor shared that he is available to make videos for fans via Cameo.