Jessica Chastain in 'The Savant.' Apple TV+ Share on Facebook Share on X Share to Flipboard Send an Email Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Print the Article Post a Comment Logo text Jessica Chastain is better known as "the Savant" in her new Apple TV+ series, which released a trailer on Tuesday. The Savant follows Chastain as an undercover investigator who infiltrates online hate groups in an effort to stop domestic extremists before they act.