In his first promo as host of Syfy Presents Live at Comic-Con, Will Arnett asked a lot of deep questions. Now the network is answering a big one: Which celebrities will geek out with him at the fan fest in San Diego?

Among those joining the voice of LEGO Batman in his three-night coverage of Comic-Con (July 2-23, 8 p.m. ET) are cast members from The Walking Dead (including Norman Reedus), Star Trek Beyond (including Chris Pine, Zachary Quinto, and Idris Elba), and Mr. Robot (including Rami Malek), as well as famous folks like Elijah Wood, Jaimie Alexander, Tony Hale, and Will Forte.

Arnett will be assisted by correspondents Hailey Bright (Coin-Op TV Live) and William Haynes (People Be Like), who will conduct man (or woman or unknown costumed creature)-on-the-street interviews and host news segments.

Here is the line-up as it stands:

UPDATE: The cast of Mr. Robot wil now appear on Friday instead of Thursday.

Thursday, July 21: The Star Trek Beyond cast, including Chris Pine, Zachary Quinto, Karl Urban, Zoe Saldana, Idris Elba, John Cho, Sofia Boutella, and director Justin Lin (who will present an exclusive look at the Beyond premiere); Tony Hale (Veep); Zachary Levi (Heroes Reborn); Alan Tudyk (Robot Chicken); Eric Christian Olsen (NCIS: Los Angeles); and Rose McIver (iZombie).

Friday, July 22: The Walking Dead stars Norman Reedus and Steven Yeun; the Mr. Robot cast, including Rami Malek, Christian Slater, Carly Chaikin, Portia Doubleday, and Grace Gummer; Will Forte (The Last Man on Earth); Jaimie Alexander (Blindspot); Yvette Nicole Brown (The Odd Couple); and Derek Waters (Drunk History).