Even if actors look close on screen or during press runs, that bond might not exist off camera. While it is often because of behind-the-scenes issues, sometimes people are too locked into their work to socialize.

William Shatner, who played Captain Kirk on Star Trek: The Original Series, spoke with Roger Ebert of The Advocate in 1986 about the crew’s friendships. He said that he, Leonard Nimoy, and DeForest Kelley were friends, but the rest of the cast were not as close.

"The truth is this. Leonard Nimoy and I are very dear friends. We don't see each other too much socially, but we feel a certain brotherhood, a fondness. Both of us are fond of DeForest Kelley. But we see him less. We all had lunch today, laughing and scratching. We share 20 years, if not of soul-binding friendship, then of respect."

He also said, "The rest of the cast is more distant. Even while we were making the television series, we would work so hard, we didn't have time to socialize much, and in the intervening years, there was no real association. Making the film was a long, arduous process, and between shots, I preferred to spend most of my time in my dressing room, reading. I didn't see too much of the cast. There wasn't a lot of camaraderie. But with the three of us, it's very real."

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