| Person | Type | Job | Role(s) |
|---|---|---|---|
 Abraham Polonsky | Crew | Writing | Screenplay |
 Billy Williams | Crew | Camera | Director of Photography |
 Carlo Gervasi | Crew | Art | Set Decoration |
Chic Anstiss | Crew | Camera | Camera Operator |
David M. Ice | Crew | Sound | Sound Effects Editor |
David Niven Jr. | Crew | Production | Producer |
Francesca Roberti | Crew | Directing | Script Supervisor |
Franco Corridoni | Crew | Costume & Make-Up | Makeup Artist |
 Frank Perry | Crew | Directing | Director |
Frank Yablans | Crew | Production | Producer |
Gianni Cozzo | Crew | Directing | Assistant Director |
Jane Feinberg | Crew | Production | Casting |
Joe Chevalier | Crew | Art | Set Decoration |
John DeCuir Jr. | Crew | Art | Production Design |
 John Williams | Crew | Sound | Original Music Composer |
Kurt Neumann | Crew | Production | Associate Producer, Production Manager |
Luigi Rocchetti | Crew | Costume & Make-Up | Makeup Artist |
Maria Teresa Corridoni | Crew | Costume & Make-Up | Hairstylist |
 Mike Fenton | Crew | Production | Casting |
Paolo Fabbri | Crew | Production | Location Manager |
Peter E. Berger | Crew | Editing | Editor |
Roy Charman | Crew | Sound | Sound mixer |
Stefano Maria Ortolani | Crew | Art | Art Direction |
Theoni V. Aldredge | Crew | Costume & Make-Up | Costume Design |
 Wendell Mayes | Crew | Writing | Screenplay |
William Hartman | Crew | Sound | Sound Effects Editor |
 Jack-Alain Léger | Crew | Writing | Novel |
Aldo De Martino | Crew | Sound | Boom Operator |
 Adolfo Celi | Cast | Actor | Cardinal Vinci |
 Christopher Reeve | Cast | Actor | Father John Flaherty |
David Mills | Cast | Actor | Major |
 Fernando Rey | Cast | Actor | Cardinal Santoni |
 Geneviève Bujold | Cast | Actress | Clara |
 Gregory Snegoff | Cast | Actor | 1st Soldier |
 Harrison Muller Jr. | Cast | Actor | 2nd Soldier |
Ian Danby | Cast | Actor | Lieutenant |
 Jason Miller | Cast | Actor | Don Vito Appolini |
 Joe Cortese | Cast | Actor | Ludovico 'Lodo' Varese |
 Joe Pantoliano | Cast | Actor | Pvt. Joe Musso |
 Joe Spinell | Cast | Actor | Bride's Father |
 Leonardo Cimino | Cast | Actor | The Pope |
 Milena Vukotić | Cast | Actress | Sister Verna |
 Pamela Prati | Cast | Actress | 1st Roman Girl |
 Robert Prosky | Cast | Actor | Bishop Walkman |
 Tomas Milian | Cast | Actor | Father Francisco |
| Person | Type | Job | Role(s) |
