Filming Begins on Arrow’s 100th Episode

Filming began on Arrow’s 100th episode yesterday, September 23 in Vancouver. Director, James Bamford, Stephen Amell and Paul Blackthorne shared photos from the first day of filming the milestone episode.

As of right now, we know Katie Cassidy and Jamey Sheridan (Robert Queen) are set to return in the episode. Stephen also announced their would be another mystery guest in the episode, but did not reveal who that person was. All we got was a photo of the person’s silhouette. Any theories?

The episode will air later this Fall on the CW and the new season will premiere on October 5!

Source: Twitter