Dan Grimaldi. Actor: Die Sopranos. Daniel Grimaldi (born March 7, 1946) is an American actor and mathematics professor who is known for his roles as twins Philly and Patsy Parisi on the HBO television series The Sopranos, various characters on Law & Order (1991-2001), Don't Go in the House (1979), The Junkman (1983), Men of Respect (1990), and The Yards (2000).