Have Mercy, Josh Peck & John Stamos Reunited In 'Fuller House' Season 4

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Everywhere you look, you'll find the Fuller House cast littering their social media feeds with love for each other. Although it's been more than 30 years since the family sitcom Full House debuted on TV, the actors remained close and definitely helped the case for the making of the 2016 Netflix reboot Fuller House. It feels a little wrong for John Stamos to have a TV family outside of the Tanners, but one of his other onscreen relatives has joined the clan's antics for new Fuller House episodes. Grandfathered stars Josh Peck and John Stamos reunited in Fuller House Season 4, and their love for each other is definitely worthy of audiences' "awww"'s.

As one half of Nickelodeon duo Drake & Josh, Peck was likely just as much a part of your childhood as Stamos' Uncle Jesse was, but you might have missed out on the nostalgic mashup that began the men's friendship. Stamos and Peck starred as father and son on the short-lived FOX series Grandfathered in 2015, and just as you can't leave the Tanner house without a hug, you can't scroll through these two's Instagram pages without spotting signs of their bromance. Seeing as Fuller House is no stranger to meta references (remember that diss toward the Olsen twins?), it was only a matter of time before Peck made his way to the sitcom set alongside Stamos.

Announcing Peck's role when Season 4 of the comedy dropped on Netflix on Dec. 14, Stamos wrote on Instagram, "Hands down, the finest guest star on #Fullhouse/ @fullerhouse since the incomparable #Urkle."

Well, it'd be tough to surpass the iconic Full House cameo of Family Matters character Steve Urkel, but we'll give Peck the benefit of the doubt. According to TVLine, he plays a hipster dad in a Daddy and Me group that Jesse takes his daughter Pamela to, so interaction between the characters is likely brief. Either way, here's hoping for Jesse making a joke that they could've been very close in another life.

Peck's involvement with Season 4 was first teased over the summer when Stamos posted a clip of Peck entering the Tanner family living room and pretending to look for his Drake & Josh counterpart. YouTuber David Dobrik, aka the guy who reunited Peck with Drake & Josh co-star Miranda Cosgrove, also documented his visit with Peck and Stamos on the Fuller House set in an August vlog, during which the men seemed to hide the fact that Peck was actually guest starring on the show.

As for what Peck's character is stepping into at the San Francisco home, he couldn't have picked a busier time to stop by. Kimmy Gibbler (Andrea Barber) is serving as the surrogate for Stephanie (Jodie Sweetin) and Jimmy's (Adam Hagenbuch) baby, while DJ (Candace Cameron Bure) and Steve (Scott Weinger) are finally rekindling their high school romance. What with the older adults all moving back to town, the family home should be packed 24/7. Here's hoping that Peck's character manages to snag a place at the dinner table if Jesse invites him over.

Season 4 of Fuller House is now streaming on Netflix.