Celebrating Tartuffe's opening in the park are Danielle Ferland (Into the Woods) and Tartuffe himself, Dylan Baker with Chicago's Ruthie Henshall and Mary Testa, who replaced Andrea Martin as the maid Dorine. Tartuffe concerns a venal and libidinous religious hypocrite who holds a household under his thrall until being exposed for what he is and runs at Central Park's Delacorte Theatre through Sept. 5.