After playing TV's beloved Uncle Jesse (and eventual father to twins Nicky and Alex) on Full House, John Stamos became a proud papa in real life after his son Billy was born. "From now on, the best part of me will always be my wife and my son," Stamos captioned a black-and-white photo of Billy snoozing on his bare chest via Instagram in April 2018. "Welcome Billy Stamos (named after my father). #NotJustanUncleAnymore #Overjoyed." Stamos shares Billy with wife Caitlin McHugh, whom he tied the knot with in February 2018. Since welcoming Billy, Stamos and McHugh have continued gushing about their little one's milestones and living happily as a family of three. "The marriage has been ... it feels right. It just feels good. I tell you, I'm just so grateful that I'm married at this age and that I have a kid and a family," the actor exclusively told Us Weekly in February 2021. "But if any marriage, whatever years you're at, can make it through this [coronavirus] pandemic, then you got a good shot." He continued: "[Parenting is] great. I'd say maybe the only good thing about this pandemic is I got to spend more time with my kid during these formative years than most, I think, than any other years." Scroll below to see Stamos and McHugh's cutest family photos: