Though he has not yet been given his own detective series, Rory Kinnear is a deeply British actor. He’s played Frankenstein’s monster in “Penny Dreadful,” Tolkien’s Tom Bombadil in “The Lord of the Rings: The Rings of Power,” Winston Churchill in “The Ministry of Ungentlemanly Warfare,” twin pirates in “Our Flag Means Death” and 10 different creepy English villagers in …