Cosplayers, get ready. Terrificon returns to Mohegan Sun this weekend. The event celebrates comics and the folks who create them, along with actors from superhero, sci-fi and horror movies and TV shows.

And, yes, cosplayers might turn out for Terrificon, but you certainly don’t have to dress up in costume. You could just, say, peruse the wide range of comic books, artwork, and more.

You could also meet actors including Michael Rooker, who recently was in “Guardians of the Galaxy” but has also acted in so many other films over the years; Scott Patterson, who is probably best-known for “Gilmore Girls” but also appeared in productions such as “Alien Nation: Dark Horizon”; and Tristan Rogers, who stars on “General Hospital” and popped up in “Babylon 5."

Terrificon, 1:30-8 p.m. Fri., 10 a.m.-7 p.m. Sat., and 10 a.m.-5 p.m. Sun., Mohegan Sun Earth Expo & Convention Center; single day ticket is $33, three-day tickets is $85 (for ages 8-12, it’s $15 and $40, respectively, and free for kids 7 and younger); terrificon.com.