Actors and fandom properties define the shape of Last Podcast on the Left's nearest audiences — not other podcasts. Similarity here measures how closely two entities' audience compositions resemble each other; at 0.82, Bo Burnham is the strongest pull in the top 10, and he's a comedian, not a podcast.
The top 10 breaks down as four actors, two fellow podcasts, one comedian, one movie franchise, one author, and one TV show. The actor cluster — David Harbour (0.75), Tom Felton (0.75), Adam DeVine (0.74), and Blake Anderson (0.74) — sits tightly grouped in the mid-0.70s, suggesting a coherent audience layer that skews toward ensemble comedy and genre-adjacent entertainment. Wizarding World of Harry Potter (0.79) is the second-strongest neighbor overall, placing a major fandom property ahead of every actor in the set. The two same-kind neighbors — My Favorite Murder (0.76) and The Adventure Zone (0.73) — do appear, but they're outnumbered. John Green (0.74) and Parks and Recreation (0.74) round out a cluster that leans toward fandom, comedy, and literary-adjacent culture rather than true crime or horror, despite the podcast's subject matter.
The broad shape reflects an audience that overlaps meaningfully with a wide range of entertainment categories, with no single neighbor dominating and no single subcategory accounting for more than four of the ten positions.