TV and film stars, life-sized Dungeons and Dragons masters and colourful cosplayers will be taking over one of Kent’s biggest attractions. The Medway Gaming Festival returns to the Historic Dockyard in Chatham for a weekend of retro, video and tabletop games. For the first time this year, the festival will host a series of celebrity guests from the screen, including voice actors and stunt performers. Medway-born Viking Valhalla star Julian Seagar, Lara Croft voice artist Shelley Bond, Star Wars actor Mike Quinn and Chris Bunn, who has appeared as a background performer in films such as James B…