Stephen King is the strongest pull in The Humane Society of the United States' neighbor set — at 0.80, he sits noticeably above the rest of the top 10, and he's the only Author in the group. That gap, combined with a second cluster anchored by actors, is what the two-peak shape flag captures here.
The second cluster is dense with actors: Bette Midler (0.77), Debra Messing (0.76), Michael Caine (0.74), Sean Hayes (0.74), and Jane Lynch (0.74) all land within a tight band. Together, actors account for five of the top 10 neighbors. The one non-celebrity in the set is WWF (0.75), an Environmental organization — the only neighbor that shares the Organizations category with the Humane Society, though its subcategory is Environmental rather than Non-Profit. Rounding out the top 10 are John Cusack (0.73, Actor), Barbra Streisand (0.72, Musicians and Bands), and Trent Reznor (0.72, Musicians and Bands).
The overall picture is a Non-Profit whose audience shape is defined almost entirely by celebrity neighbors — predominantly actors, with a single author at the apex and one environmental organization as the lone organizational peer in the top 10.