"I would love to have them all on," Aaron Korsh said of his 'Suits' alum, but "I don't want to have them all on one after the other because I think it harms the original and the new show to do that."

Characters from the original series will be making appearances on the spinoff, including original series star Gabriel Macht – set for a three-episode stint as Harvey Specter. Macht has not yet filmed his scenes, so will appear later in the season, and it took some convincing to bring him on board.