William Shatner Says He's 'Deeply Saddened' by 'Star Trek' Castmate Walter Koenig's Death

William Shatner paid tribute to his late "Star Trek" castmate Walter Koenig after the latter died at 90 from natural causes on Sunday. In a statement shared to his X account Tuesday afternoon, Shatner, who starred opposite Koenig as Captain James T. Kirk in the "Star Trek" franchise, noted he was "deeply saddened" by the news. "I am deeply saddened to learn of Walter Koenig's passing," he wrote. "Although we did not know each other well away from the set, we shared the later seasons of the original 'Star Trek' series and the six films that followed." He added: "What . . .