Paramount Network.“Yellowstone” follows John Dutton (Kevin Costner) and his family as they run the largest contiguous ranch in the US and face off against threats from developers and politicians. Holloway’s character — money manager Roarke Carter — is their latest adversary.Holloway, 50, spoke to The Post about why he wanted to be on “Yellowstone,” facing off against Costner, Sawyer’s legacy and more.Well, it was my favorite show on TV at the time.