One of the joys of Comic-Con is seeing how infectious the sensation of wonder can be.

This is true of both the fans and the talent. Comic-Con is a place where everyone goes to have fun, where people of all ages can revel in their enthusiasm and casts, and writers and producers soak up the love and appreciation, because aren’t those the reasons they got into this business?

Thursday afforded the opportunity to reminisce with the cast and writers of a legendary genre series as part of “The X-Files’s” 20th Anniversary Panel; to coax intriguing hints about the upcoming season of  “Sherlock,” airing on PBS, out of its producers; and to enjoy a chat with the stars of “Strike Back” prior to the new season’s premiere on Cinemax in August.

We’ll share a lengthier account of “Strike Back’s upcoming season closer to premiere. In keeping with the spirit of Comic-Con, let’s focus on one of its main stars, Sullivan Stapleton, and the fact that this may be the last Comic-Con that the Australian actor can walk through one of the exhibit halls as a regular guy.

Check out our image list to read the highlights of Thursday’s conversations with the producers of “Sherlock,” “The X-Files” panel and Stapleton.