David Harbour leads Emmy betting markets for Outstanding Supporting Actor in a Limited or Anthology Series or Movie at 66.8% implied probability due to strong critical reception for his turn as Floyd in the HBO dark comedy “DTF St. Louis,” which premiered in March 2026 and earned multiple nominations across categories. The series’ sharp exploration of middle-age relationships and male friendship has boosted campaign momentum, with Harbour’s layered, humanistic performance cited as a standout by awards predictors. Charles Melton sits at 24.4% on the strength of his first Emmy nod for season two of Netflix’s “Beef,” where his work in the expanded feud storyline has drawn guild and critic attention. Lower-probability contenders like Richard Gadd and Nick Offerman trail amid fewer precursors and less dominant narrative traction ahead of final voting.