The Star Trek rumor mill has been full of reports that The Next Generation actor Michael Dorn would return to his Klingon roots on Star Trek: Discovery. Turns out, nope, that’s not happening. However, it sounds like he was offered a part, but turned it down after hearing how small his paycheck would be.
Source: io9 – Michael Dorn Had a Good Reason for Turning Down the Chance to Play Worf’s Ancestor on Star Trek: Discovery