Big Finish have been producing Doctor Who audios since 1999, starring Tom Baker, Peter Davison, Colin Baker, Sylvester McCoy, Paul McGann, David Tennant and John Hurt. In these two new adventures, Jon Culshaw comes on board to play Kamelion, a shape-changing android companion from the Fifth Doctor's era. BLACK THURSDAY by Jamie Anderson. 1902. Deep beneath the Welsh village of Abertysswg, men have worked the black seam for generations. Until the day of the disaster. The day that a blue box from the future materialised inside the mine... and things would never be the same again. POWER GAME by Eddie Robson. Welcome to the Incredible Power Game, in which three brave Earthlings enter the Void Pit in search of strange gems to help return the alien Hostess to her home dimension. Today's contestants include Graham, Sadia... and Tegan, an air stewardess from Brisbane! Jon Culshaw comes on board to play Kamelion, a shape-changing android companion from the Fifth Doctor's era, the character's first appearance at Big Finish. Cast: Peter Davison (The Doctor), Janet Fielding (Tegan Jovanka), Mark Strickson (Turlough), Jon Culshaw (Kamelion), Lizzie Roper (Eira Hughes), Tim Treloar (John Hughes), Matthew Aubrey (Gwyn Hughes), Derek Hutchinson (Geoff Evans), Bettrys Jones (Judith Matson), Christopher Naylor (James Hudd), Harriet Kershaw (The Hostess), Natalie Winter (Una), Richard Popple (Richard), Dougie McMeekin (Stuart), Alex Tregear (Sadia).