Celebrity, News 2017, Arrow, Captain Jack, cosplay and coffee, Doctor Who, John Barrowman, Malcom Merlyn, megacon, MegaCon Tampa Bay The Best Moments from John Barrowman’s Tampa Bay Megacon Panel! October 5, 2017 John Barrowman knows how to put on a show! Check out the best moments from John Barrowman’s Tampa Bay Megacon Panel! Tweet Share Pin1 Share +1Shares 1