sentences:  In 1966, Montaigne portrayed the Romulan Decius in the "" episode "Balance of Terror"; he had nearly been cast as Mr Spock when it was possible that Leonard Nimoy would appear on "".A year later, he portrayed the Vulcan Stonn, the paramour of Spock's intended bride T'Pring, in the episode "Amok Time"—a role that he reprised in 2006 in the unofficial mini-series "".Additionally, he guest-starred on "Batman", "Voyage to the Bottom of the Sea", "The Man From U.N.C.L.E.