Nearly every character is from a non-european mythos and it would be so easy to make it a show that showcases POC. Hell, even the main character is pointed out as specifically looking non-white, though it is never clarified what exactly his race is in the book.
Low-key, Odin and Mad Sweeney will almost certainly be white, but can I get an Arabic Easter? A Sam played by an actual Native American? A Mr. Nancy who is an old, bony, Black dude? And so on, and so forth?