 | Patrick Bergin als Patrick |
 | Luke Griffin als Young Patrick |
 | Alan Bates als Calpornius |
 | Susannah York als Concessa |
 | Malcolm McDowell als Quentin |
 | Eamonn Owens als Benignus |
 | Chris McHallem als Auxilius |
 | Michael Caven als Iserninus |
 | Stephen Brennan als Briain |
| Adam Goodwin als Brother Peter |
| Peter Byrne als Ship Captain |
| Michael Carven |
 | Ned Dennehy als Lucet Mael |
 | James Flynn als Eli |
 | Richard Gibson als Bishop of London |
| Maria Hayden als Nuala |
| Sean McDonagh als Young Man |
| Pat McGrath als Millihus |
| Emily Nagle als Young Nuala |
| Niall O'Brien als Longhaire |
| Bairbre O'Toole als Virgin Slave |
 | Ryan J-W Smith als Young Briain |
 | Alan Stanford als Paladius |
| Robert Hughes | Director |
| Martin Duffy | Writer |
| Robert Hughes | Writer |
| Robert Hughes | Producer |
| Martin O'Sullivan | Co-Producer |
| Morgan O'Sullivan | Co-Producer |
| James Flynn | Co-Producer |
| Paul Munn | Line Producer |
| Lance H. Robbins | Executive Producer |
| Eric S. Rollman | Executive Producer |
| Inon Zur | Music |
| James Mathers | Cinematography |
| Terry J. Chiappe | Editor |
| Carmel O'Connor | Casting |
| Jim Furlong | Production Design |
| Irene O'Brien | Art Direction |
| Maeve Paterson | Costume Design |
| Rosie Blackmore | Makeup Department Head |
| Fiona Hogan | Makeup Artist |
| Kevan Barker | Second Unit Director |
| Oak O'Connor | First Assistant Director |
| Eric O'Cuinn | Assistant Director |
| Damon Silvester | Assistant Director |
| Nick Thomas | Production Assistant |
| Nicholas Wilkinson | Assistant Director Trainee |
| Graeme Bird | Propmaker |
| Dave Kinsella | Props |
| Ray Cross | Sound |
| Paul Di Franco | ADR Supervisor |
| Keith Dickens | Sound Effects Editor |
| Alan Lyons | Boom Operator |
| T.A. Moore Jr. | Sound Mixer |
| Bob Rutledge | Sound Supervisor |
| Maurice Foley | Special Effects Supervisor |
| Martin White | Stunt Double |
| Mace Johnson | Colorist |
| Dermot Cleary | Location Manager |
| Mairtín de Barra | Assistant Location Manager |
| Sean Cahill | Electrician |
| Tony Devlin | Gaffer |
| Richie Egan | Grip |
| Sarah Francis | Second Assistant Camera |
| Rob Kelly | Grip |
| Sabine Wührer | Script Supervisor |
