Defending champions Deccan Gladiators have retained five seasoned campaigners in West Indies' all-rounders Andre Russell and Odean Smith, England's Tom Kohler-Cadmore, Emirati-Pakistani cricketer Zahoor Khan, and Namibia all-rounder David Wiese, ahead of the upcoming season six of Abu Dhabi T10 league, scheduled to be held from November 23 to December 4.