The annual convention includes numerous screenings of television shows and related panels.
Barrowman will appear with his Torchwood: Miracle Day co-stars Lauren Ambrose, Alexa Havins, Eve Myles, Bill Pullman, Mekhi Phifer; Lathan will take part in The Cleveland Show panel; and Paquin will appear as part of the True Blood panel alongside Alan Ball, Stephen Moyer, Sam Trammell, Ryan Kwanten, Rutina Wesley, Kevin Alejandro, Kristin Bauer van Straten, Nelsan Ellis, Joe Manganiello, and Deborah Ann Woll.
Parsons will appear with his castmates from The Big Bang Theory, including Johnny Galecki, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Mayim Bialik, and Melissa Rauch.
Other stage veterans set to appear will include Peter Dinklage (Game of Thrones), Michael Emerson (Person of Interest), Stephen Lang (Terra Nova), Megan Mulllaly (Children's Hospital), Katey Sagal (Futurama), Kristen Schaal (Bob's Burgers), and Ian Somerhalder (The Vampire Diaries).
Don't show this again.