Queen Charlotte: A Bridgerton Story features the younger versions of several Bridgerton characters, including Arsema Thomas as a young Lady Agatha Danbury. A prequel spinoff of the popular Netflix period show Bridgerton, Queen Charlotte takes place across two timelines and follows the eponymous queen, played by both Golda Rosheuvel (as seen in Bridgerton) and India Amarteifio as the royal 50 years younger. Among the other characters in the Queen Charlotte cast is Lady Agatha Danbury, played by Adjoa Andoh (reprising her Bridgerton role) and Arsema Thomas.
https://screenrant.com/arsema-thomas-queen-charlotte-young-lady-danbury-bridgerton/