The Full House revival has the actors who played Uncle Joey, D.J. and Stephanie on board, but the famous twins who brought Michelle Tanner to life will not be part of the fun. Mary-Kate and Ashley Olsen will not be joining the cast of the ’90s TV show reboot, dubbed Fuller House, executive producer Robert L. Boyett said in a statement Friday, according to The Hollywood Reporter. John Stamos, who plays Uncle Joey and is a producer on the Netflix show, tweeted that he was “heartbroken” shortly after the news broke. Fuller House, set to premiere in 2016, follows a pregnant D.J. Tanner-Fuller, who works as a veterinarian and already has two boys, as she tries to rebuild her life after recently being widowed. Her sister, Stephanie, now a musician, and her BFF Kimmy, along with her teenage daughter Ramona, move into D.J.’s San Francisco abode to help.