Stars (in credits order)
Liam Neeson
Narrator
Andrew Hunsicker
Pope Leo X
Mark P Galbraith
Cardinal
Alexandru Aldea
Martin Luther
Kevin B. Mulligan
Jeff Ost
Righteous Jolly
King Charlemagne
Sean Loosh
Duomo Congregant
Jeff Wertz
King Henry VIII
Michael Bonini
Pope Benedict I
Kenneth McGregor
Pope Alexander VI
Dillon Sibilla
Boniface Killer
Michael Harrah
Pope Celestine 6
Dennis P. Marburger
German Emmisary
Shawn Shillingford
Johann Burchard
Lisa Tobias
Roman Prostitute
Maxwell Scott
Emperor Nero
Cyrus Samson
Emperor Constantine
Andrew Moffatt
Cesare Borgia
John Coviello
Aide to Pope Sixtus
K.J. Linhein
Pope Clement VII
Kyle Blumenthal
Courier
John David Miles
Girolamo Savonarola
Francesco Pultro
Father Andreas Reiser
Kevin Convery
Dachau inmate
Thomas Everett
Lombard Thug
Kasey Vincent
Polish Student
Ginger Fries
German Woman
David Sheridan
Dacchau German prison guard
Glorinda Marie Cook
Extra
Freddie Colton
King Charlemagne's Assistant
Nick Raffaele
Dachau Inmate
Gregory Cole
Josef Muller
Dave Shaver
Pope Sixtus IV
Sean Patrowich
Italian Fascist (1940s) reenactment
Julia Campbell
Lucrezia Borgia
Adam Griffith
Christian
Constance Baranzano
Noblewoman
Kevin Charles Gauntner
German Printer
Joshua Spudeno
Italian Fascist
Valerie Logan
Congregant
Aynsleigh Weller Haines
Benedicts Courtesan S1.E2.
Greg Mickles
Roman Executioner
Adler Roberts
Montesecco
Paul Dake
Pope Pius XI
Fascist
Jeff Swisher
Emperor Charles V
Tony Oriente
Papal Nuncio
Connor Hough
Mark A. Smith
Spanish Monk
Bill Fantini
Pope Leo III
Anthony James Fisher
Maria Konstantinidis
Elizabeth Cascarelli
Servant Girl
Nick Andrews
Medici Nobel
Tim R. Worley
12th Century Dark Cardinal (uncredited)