Brian Baumgartner sits at the top of The Office's similarity graph at 0.91 — and he's joined immediately by two more cast members, making actors from the show itself the dominant structural feature of the top 10.
The shape is two-peak, and the split is clear. One cluster is cast-driven: Brian Baumgartner (0.91), Angela Kinsey (0.90), and Jenna Fischer (0.87) form a tight band of actors whose audiences overlap heavily with The Office's own. The second cluster pulls in a different direction entirely — toward sports-adjacent, lad-humor content. theCHIVE (0.86), Bert Kreischer (0.86), and Pat McAfee (0.84) represent a comedians-and-sports-media neighborhood that shares the same audience composition without any thematic connection to the show. Rounding out the top 10 are Julia Rose (0.86, Models), Dwight K. Schrute (0.86, Fictional Characters), MyBookie (0.85, Sports brand), and Barstool Gametime (0.84, Websites) — the latter two reinforcing the sports-humor pull of the second peak. No other TV Shows appear in the top 10, which makes the Bachelor franchise's presence just outside this window (visible in the wider graph) a notable contrast.
The two-peak structure reveals an audience that is simultaneously loyal to the show's cast and broadly shaped by a sports-comedy media diet — two distinct neighborhoods that happen to converge on the same viewers.