|Constantine premieres this fall on NBC.|
Throughout the course of the three-hour evening, Amell welcomed The Flash star Grant Gustin, Gotham star Ben McKenzie and Constantine star Matt Ryan to the stage; presided over the world premiere screening of Gotham and complete pilot ofThe Flash; and gave fans a preview of Constantine and a sneak peek at season 3 of Arrow (revealing a future involving Ra's al Ghul).
Also unveiled during the evening were four sets of Warner Bros. Television and DC Comics logos created specifically for the night and inspired by each show.
Then, DC Entertainment Chief Creative Officer Geoff Johns welcomed the casts and executive producers of Arrow, Constantine, The Flash and Gotham to the stage (34 people including the moderator, perhaps the biggest panel ever in Hall H?) for a concluding panel discussion.
Watch the Constantine preview trailer below:
Constantine premieres Friday, October 24, at 10 p.m. ET/PT on NBC.