Pier Paolo Capponi (9 June 1938 – 15 February 2018) was an Italian actor and screenwriter.

Born in Subiaco, after his studies Capponi attended a theater school and later was chosen by director Vittorio De Seta for an important role in Un uomo a metà. His film career was divided equally between auteur films (with, among others, Paolo e Vittorio Taviani, Valerio Zurlini, Gérard Corbiau, Francesco Rosi and Nelo Risi) and genre films, in which he was sometimes credited as Norman Clark. On the big screen with some regularity for a decade, after 1977 Capponi focused his appearances on TV series and on stage.