Under the red overcoat, the Dancing With the Stars champ opted for a holiday. The eight-episode series, set to air in 2019. “Dancing With the Stars” revealed the contestants for its special 26th season, which features a cast full of athletes competing to take home the mirror-ball trophy. The entire cast, including the highly anticipated stars and one. Maks Chmerkovskiy (who is also competing this season), has competed in 10…