David Harbour Talks Learning ASL for ‘DTF St. Louis,’ Shares a Line From ‘Avengers: Doomsday’ and Wants a Christopher Nolan-Directed ‘Warcraft’ Movie

In “DTF St. Louis,” David Harbour goes quiet. The 51-year-old New York-born actor plays Floyd, a performance built around four months of daily American Sign Language practice. The work earned him his first Emmy acting nomination since 2017 — and his first in the limited series category, this time as an executive producer through his…