Do we show "characters" for non fiction books?

[Carol She's So Novel꧁꧂]

First time I've noticed this.

https://www.goodreads.com/book/show/3...

[Scott]

That's a bunch of characters if I ever saw one...

[Carol She's So Novel꧁꧂]

Scott wrote: "That's a bunch of characters if I ever saw one..."

Hahahaha, I was thinking that!

[Renske]

I would think it is fine, there are a lot of people with multiple books written about them.

Maybe it is even more useful than some of the listed characters of fiction books, those books are often also linked through the series page. (yes, I know there are series/universes where characters are only in some of the books)