Every year at TerrifiCon , social media lights up with Connecticut comic book fans who’ve just met their idols. These are superhero moments when those who write and draw mythic characters from comics and movies get to gather with the mere mortals who read and worship their work. Sometimes you notice the creators and their fans becoming Facebook friends or staying in touch.

Often it’s just a brush with greatness, but it’s enough. TerrifiCon has been at Mohegan Sun since 2015 (except for the pandemic times). This year’s convention, at the Mohegan Sun Expo Center in Uncasville Aug.

16-18, brings such big names from the comic book world as Scott Snyder (one of the best Batman writers ever), exceptional X-Men scribe Chris Claremont (who’s done great work for DC, Marvel and Archie comics), Skottie Young (“I Hate Fairyland” and some wonderful adaptation of L. Frank Baum’s “Oz” books), Adam Hughes (known for his lush depictions of Wonder Woman, Catwoman and other superwomen) and true industry giants like Walt Simonson and Howard Chaykin. TerrifiCon also brings movie and TV stars to the party.

Some are there mainly to sign autographs. Some also take part in panel discussions about their most famous movies or shows. This year has everyone from Sylvester McCoy (the seventh Doctor of the “Doctor Who” continuum) to fave “Guardians of the Galaxy” villain Michael Rooker to several generations of “Star Trek” cast members (Walter Koenig, Nana Visitor and Celia .