Kimmy Gibbler (Andrea Barber) in Full House and Fuller House may not have been a Tanner by blood, but she was always a part of the Tanner family tree. Throughout the franchise, her immediate familys context has been ambiguous as they were always mentioned as an afterthought. However, Jimmy Gibblers (Adam Hagenbuch) arrival in Fuller House caused more confusion with Kimmys family tree, as he was never introduced as Kimmys brother in Full House.

Following the original show's ending, the young cast of Full House ages in Fuller House as they take on challenges in their extended family. Even though Jimmy stayed until the season finale and ending of Fuller House, the plot hole regarding Kimmys family tree never got the closure it needed. However, there was a reason why producers added Jimmy to Fuller House, despite making an already big plot hole even worse.

Fuller House Producers Wanted "Jimmy...