After a 24-year stint as one of the most popular characters in science fiction, it’s no wonder the man is a part of the pop-culture lexicon.

William Shatner in conversation with Kevin Smith at Comic-Con is the thing Trekkies love to see. It’s been two years since he’s been here, and Hall H was packed with fans Thursday for the discussion that included a first look at a clip about an upcoming documentary on Shatner’s life.

Shatner’s career spans decades, but most know him for his portrayal of James T. Kirk in the Star Trek franchise. Starting in 1966, he starred as the captain of the Enterprise for the first Star Trek TV series from 1966-1969. He would reprise his role in seven Star Trek feature films from 1979-1994.