Jason Koerner/Getty; Netflix (Left) Meghan Markle and Prince Harry at the Royal Salute Polo Challenge benefitting Sentebale at the UPSA National Polo Center in Wellington, Florida on April 12, 2024.

Meghan Markle and Prince Harry were “wonderful” to work with, according to the showrunner of their most recent docuseries. “They were really great collaborative partners,” “Polo ...