Most attendees of Dallas Fan Days are hip to the cosplay, the comic book artist alley, the Star Wars replicas and Stormtrooper demos, and the opportunity to snag exclusive merchandise. But the three-day event, 4 to 8 p.m. Friday, 10 a.m. to 7 p.m. Saturday and 10 a.m. to 5 p.m. Sunday at Irving Convention Center (500 W. Las Colinas Blvd.) also has many autograph and photo ops (for a fee) with celebrities. And this time, shit gets real, because not only is Christian Slater coming, but also the one and only Neville Longbottom, who everyone knows was less whiny about his destiny than Harry Potter. (OK, fine, it’s actually the actor Matthew Lewis.) A certain generation of folks will also be stoked to find Beverly Hills, 90210 stars Tori Spelling and Ian Ziering alongside stars from Stranger Things, The Flash, Agents of S.H.I.E.L.D., Star Trek: The Next Generation and more. Daily tickets start at $20 online, with three-day passes starting at $60 online. For a complete schedule and autograph pricing, visit dallascomiccon.com.