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The top 10 neighbors for David Harbour span actors, comedians, and authors — no single subcategory dominates, and the scores compress into a narrow band from 0.84 down to 0.81, the hallmark of a flat shape.
Similarity here measures how closely two entities' audiences resemble each other in composition. John Green leads at 0.84, an author rather than an actor — the highest score in the set belongs to a subcategory different from Harbour's own. Bo Burnham follows at 0.84 (comedians), then Glenn Howerton at 0.83 and Ed Helms at 0.82, both actors. Anders Holm rounds out the top five at 0.82, also an actor. The remaining five — Lauren Graham (0.81), Anthony Jeselnik (0.81), Macaulay Culkin (0.81), Rob McElhenney (0.81), and Nick Offerman (0.81) — hold within a two-point spread of each other. Actors make up seven of the ten neighbors; comedians account for two (Bo Burnham and Anthony Jeselnik); and John Green is the lone author. No TV personalities, musicians, or non-celebrity categories appear in the top 10.
The mix of actors and comedians with a single author at the peak suggests an audience that tracks a particular register of performer — one that crosses genre lines — rather than clustering tightly around any one kind.
