Tom Felton has been cast for season 3 of The Flash by Paul Edwards | Jul 3, 2016 | Flash, News, Thoughts | 0 comments The latest casting for The Flash season 3 is Harry Potters Tom Felton, but as who, the seasons big bad, or a CSI keeping tabs on Barry Allen, we will have to wait and see? Submit a CommentYour email address will not be published. Required fields are marked *Comment * Name Email Website