I thoroughly enjoyed listening to The West Wing Weekly (and rewatching the show over 4 years along with the podcast). When I get back to watching ST Voyager, I'll continue listening to The Delta Flyers.
Not celebrity driven, but I am enjoying Enterprise Incidents (ST TOS) and loved A Degree Absolute (The Prisoner).
Eric is the host of the Longbox Review comic book podcast, which also includes The Gutters (audio journal) & Center Seat (a Star Trek podcast). Co-host of The Legion Project podcast. linktr.ee/longboxreview