And yet, when Oz wasn’t performing, he was “this very intimidating figure,” said Brian Henson. “He really was kind of like Sam the Eagle—he was dark and brooding and if Frank was coming down the hall, you got out of the way!” Juhl remembered Oz as “incredibly moody” during those years. “Frank has this incredible thing,” said Juhl. “He is quite clearly the best puppeteer in the world, and he fights it.”