The Olsen twins, 29, are the only "Full House" cast members who didn't return for the reboot. However, their character Michelle Tanner, is briefly referenced in the new series, reported Us magazine.
"That was a giant bummer, but their participation was never a precondition for doing that show. I hoped that they would come back and do one episode, but I didn't think that they were going to be regulars," Franklin said.
"Fuller House" debuted on Netflix on February 26, almost 20 years after the original series' premiere in 1987.