Elnor is a young male who has been raised by Romulan sect of warrior nuns; Qowat Milat. Evagora has said that his upbringing prepared him for his role quite well.
The recent tie-in novel, Star Trek: Picard – The Last Best Hope heavily features the character Elnor.
Star Trek: Picard episode 4, “Absolute Candor” is when Evagora will make his debut appearance. The episode is available on CBS All Access in the USA, Crave in Canada and Amazon Prime Video elsewhere.