Bette Midler sits at the top of Rosie O'Donnell's neighbor set with a similarity of 0.96 — the strongest pull in the top 10 and a clear first peak in what the data classifies as a two-peak shape. Similarity here measures how closely two entities' audiences resemble each other in composition, not how alike the entities themselves are.

The second peak forms around Barbra Streisand (0.93) and Stormy Daniels (0.92), with Jane Fonda (0.91) close behind. Taken together, the top four neighbors span three subcategories — Actors, Musicians and Bands, and Reality TV Stars — none of which is O'Donnell's own subcategory of TV Personalities. The pattern continues through the rest of the top 10: Kathy Griffin (0.89, Comedians), Debra Messing (0.88, Actors), Michael Moore (0.88, Directors), Cher (0.87, Musicians and Bands), Susan Sarandon (0.87, Actors), and Julianne Moore (0.87, Actors). Actors dominate the set — five of the ten neighbors carry that subcategory — with Musicians and Bands accounting for two more. No other TV Personality appears in the top 10.

The two-peak structure bridges a cluster of legacy entertainers (Midler, Streisand, Fonda, Cher) and a cluster of politically outspoken figures across film and comedy (Moore, Griffin, Messing, Sarandon), suggesting O'Donnell's audience sits at the intersection of those two worlds rather than belonging cleanly to either.