Last night, Zachary Quinto appeared on the Late Show With Stephen Colbert to promote the upcoming Star Trek Beyond. During his TV visit, the 39-year-old actor paid tribute to Star Trek co-star Anton Yeltsin, who recently passed away at the age of 27. 

"It was a terrible loss, not only to us personally but I think to the industry and audiences,” Quinto told Colbert. “He was such a talent." After working together since the 2009 Star Trek film, Quinto explained that the cast grew very close. “We are truly intertwined inextricably and I think we always will be in such a great way,” the actor expressed.

Quito and Colbert also spoke about the differences between the Star Wars and Star Trek franchises. Against Colbert, a self-described “hardcore sci-fi fan from the golden age of science fiction,” Quinto admits that Star Wars appealed more than the Star Trek TV series while he was growing up. 

Star Trek Beyond hits theaters July 22. Check out the complete guide to the film.