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CF
VoiceRankVoiceRank: one 0-100 measure of how strong a podcast booking someone is, built from four signals (Presence, Reach, Pull and Authority), each ranked against every other rated voice. Recomputed nightly; the arrow is the week-over-week change.
Unrated: not enough outside guesting yet to score fairly (needs 3+ appearances across 2+ shows, plus corroborating signals). It is an absence of a reading, not a low one.
Why unratedNot scored yet: VoiceRank needs 3+ guest spots across 2+ shows. We have 1 across 1.
Appearances
1
guest spots
Guest shows
1
excl. their own
Total views
9K
every episode
Last guested
today
Oct 24, 2026
View lift
Audience impactEpisodes with Charles earn below the show’s typical views. View lift compares their episodes with each show’s own average (1.0×), weighted by episode count. It reports how those episodes did, not what caused it.
0.1×1 appearance on 1 show
Similar people
Who else fitsPeople booked by the same shows as Charles Foster and tagged on the same topics. Further right means more shared shows, higher means more shared topics, measured against the other matches here: the top and right edges are this list’s strongest, and the axes start at none shared. A guest spot counts half as much for each year since it aired. Direct comps lead on both; Same circuit leans on the shows; Fresh angle leans on the topics, from shows Charles Foster hasn’t done.
Actively guestingNo guest spot in 12 months
Recent guest spots
Top matches
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History
