I haven’t listened to enough art podcasts to give many first hand reports, so I offer you a list of lists of art podcasts, many of which give good capsule descriptions of the podcasts.
Yes, there is a good bit of overlap between the lists, but you should be able to find something that suits you.
Personally, I’ve been listening to the Plein Air Podcast on Outdoor Painter while I paint. It features interviews with notable artists, as does The Artful Painter Podcast, which seems to be left off most lists for reasons that escape me.
