Those two roles were admirably performed by Alexey Markov and Irina Mataeva. Neither singer produced stop-in-your-tracks tonal power or a totally distinctive timbre, but both artists offered insightful phrasing and thoroughly fleshed-out portrayals. If Alexei Steblianko had some trouble in the upper register, he also sang with terrific ardor and communicative impact as Pierre. Sergei Skorokhodov (Anatol) and, especially, Ekaterina Semenchuk (Helene) provided dashes of vocal and theatrical spark to the performance. Mikhail Kit brought dignity and style to the role of Rostov. Gennady Bezzubenkov would have made a greater impression as the Russian war hero Kutuzov had he summoned something like a heroic sound. Alexander Nikitin provided sufficient force as Bonaparte. Mikhail Petrenko, a stand-out throughout the Mariinsky's visit, did another animated, vocally telling performance as Old Prince Nikolai.