While there are some Star Trek fans who would love to see William Shatner strut onto the U.S.S. Discovery, Jason [Isaacs] is not one of them. The actor, who plays Captain Lorca on Star Trek: Discovery, flat out said he doesn't want appearances from the original cast on the series, and that he's not a fan of "stunt celebrity casting." [Isaacs] explained his reasoning and expressed that he felt doing something like that might hurt the fans' suspension of disbelief: "Someone asked which cast members from the existing series would you like to guest star -- I think people watch...