Christopher Reeve

Father John Flaherty

Geneviève Bujold

Clara

Fernando Rey

Cardinal Santoni

Jason Miller

Don Vito Appolini

Adolfo Celi

Cardinal Vinci

Leonardo Cimino

The Pope

Tomas Milian

Father Francisco

Robert Prosky

Bishop Walkman

Joe Pantoliano

Pvt. Joe Musso

Milena Vukotić

Sister Verna

Ian Danby

Lieutenant

Harrison Muller Jr.

2nd Soldier

David Mills

Major

Joe Cortese

Ludovico 'Lodo' Varese

Gregory Snegoff

1st Soldier

Joe Spinell

Bride's Father

Pamela Prati

1st Roman Girl

Ritza Brown

Maid of Honor

Loredana Grappasonni

Bride

Ettore Mattia

Pietro

Carolyn De Fonseca

1st Flaherty Secretary

Yanti Somer

2nd Flaherty Secretary

Mimmo Poli

Sicilian Priest

Anny Papa

2nd Roman Girl

Stefania D'Amario

3rd Roman Girl

Elio Bonadonna

1st Killer

Giovanni Bonadonna

2nd Killer

Remo De Angelis

3rd Killer

Michele Messina

1st Sicilian Guard

Agnès Nobecourt

1st Postulant

Tracy Bonbrest

2nd Postulant

Paolo Maria Scalondro

Clerical Secretary

Franco Angrisano

Priest in Confessional

Tom Felleghy

Priest

Alfonso Giganti

Cardinal

Antonio Marcolini

Cardinal

Amedeo Salamon

Cardinal

Lamberto Solfa

Cardinal

Paul Müller

Priest

Franca Scagnetti

Don Appolini's Maid