What actors and actresses appeared in Angeli e demoni - 1921?

There's no movie titled "Angeli e demoni - 1921." It's possible you're thinking of:

* "Angels and Demons" (2009): This is a film based on the Dan Brown novel, and it stars Tom Hanks, Ewan McGregor, Ayelet Zurer, and Stellan Skarsgård.

* "Angels & Demons" (2000): This is a TV movie based on a different story, starring Michael Weatherly and Cary Elwes.

Please clarify the movie you're interested in, and I can provide the cast information.