Candace Cameron Bure, who plays Saget's TV daughter, D.J. Tanner, shared a photo of the two, writing on Instagram, "Happy birthday to the one and only Bob Saget! If I start listing all the things I love about you and about how well we get each other, it's gonna sound like a remembrance instead of a celebration."
"Love you with all my heart," she added. "Anyone who's had the blessing of knowing you for even a minute has been touched and changed. (And don't go making that into a dirty joke). Happy Birthday Bob - from all my heart."
Jodie Sweetin also sent a sweet message to her TV dad. "Happy, happy birthday Bob Saget!! Words cannot say how much I love you!!" she wrote on Instagram. "Your love, warmth and genuine friendship has been such an immensely important part of my life for over 30 years now. You have shown me how to laugh at myself and keep laughing through the darkest of times, something I'll never forget. All your Full House family celebrates you today! Love you 'dad'!!"
Andrea Barber also shared a selfie with "Mr. T," meanwhile, Lori Loughlin opted for a throwback pic, thanking Saget for his friendship. "Thank you for all the years of unwavering friendship and laughter, laughter, laughter," she captioned the pic.