William Shatner's relationship with his "Star Trek" costars has been tense and nonexistent for years. In fact, many of them have had no issue publicly criticizing the actor for his behavior on the set of the show, and he now thinks he knows why: publicity.
"Sixty years after some incident they are still on that track. Don't you think that's a little weird? It's like a sickness," he told The Times. "I began to understand that they were doing it for publicity."

It was reported that William and Leonard Nimoy had a strained relationship when the latter passed in 2015; the late Nichelle Nichols, who played lieutenant Ulhura, accused him of being "cold and arrogant," William acknowledged in his memoir "Boldly Go: Reflections on a Life of Awe and Wonder."
Perhaps the largest critic of William is George Takei who starred opposite the Captain James T. Kirk star in the 1960s series. George often jabs at William, even doing so when the Priceline spokesman went to space on billionaire Jeff Bezos' Blue Origin capsule.
"So 90 years old is going to show a great deal more on the wear and tear on the human body, so he'll be a good specimen to study," George tweeted after the flight. "Although he's not the fittest specimen of 90 years old, so he'll be a specimen that's unfit!"

Shortly after seeing the tweet, William said he feels "pity" for his former costar. But, in his new interview, William didn't mince words in speaking George or other costars from the sci-fi show.
"George has never stopped blackening my name," he said. "These people are bitter and embittered. I have run out of patience with them. Why give credence to people consumed by envy and hate?"