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| Cast |
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| King Arthur | Nigel TERRY |
| Morgana | Helen MIRREN |
| Lancelot | Nicholas CLAY |
| Guenevere | Cherie LUNGHI |
| Perceval | Paul GEOFFREY |
| Merlin | Nicol WILLIAMSON |
| Mordred | Robert ADDIE |
| Uther Pendragon | Gabriel BYRNE |
| Uryens | Keith BUCKLEY |
| Igrayne | Katrine BOORMAN |
| Gawain | Liam NEESON |
| Duke of Cornwall | Corin REDGRAVE |
| Kay | Niall O'BRIEN |
| Leondegrance | Patrick STEWART |
| Ector | Clive SWIFT |
| Lot | Ciarán HINDS |
| Sadok | Liam O'CALLOGHAN |
| Astamor | Michael MULDOON |
| Boy Mordred | Charley BOORMAN |
| Mordred's lieutenant | Mannix FLYNN |
| Mador | Garrett KEOGH |
| Ulfius | Emmet BERGIN |
| young Morgana | Barbara BYRNE |
| lady in waiting | Bríd BRENNAN |
| aged Morgana | Kay McLAREN |
| abbott | Eamon KELLY |
| horsemaster | Michael ROWLAND |
| the riders | Philip BERNON |
| | Richard COLLINS |
| | Seamus COLLINS |
| | Joe CULLEN |
| | Daithi CURREN |
| | Tony DOYLE |
| | Donal FORTUNE |
| | David GAVAGHAN |
| | Eddie KENNEDY |
| | Bronco McLAUGHLIN |
| | Michael O'FARRELL |
| | Ray O'TOOLE |
| [voice of The Grail] | David De KEYSER |
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| Credits |
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| Directed by | John BOORMAN |
| Production Company | Orion Pictures Corporation |
| Executive Producers | Edgar F. GROSS |
| | Robert A. EISENSTEIN |
| Produced by | John BOORMAN |
| Associate Producer | Michael DRYHURST |
| Production Manager | Jack PHELAN |
| Production Accountant | Arthur TARRY |
| Assistant Accountant | Con CREMINS |
| Location Manager | Kevin MORIARTY |
| Production Assistants | Beryl HARVEY |
| | Marie McFERRAN |
| General Assistant | Telsche BOORMAN |
| 2nd Unit Director | Peter MacDONALD |
| Assistant Directors | Barry BLACKMORE |
| | Ted MORLEY |
| | Andrew MONTGOMERY |
| | Robert DWYER-JOYCE |
| | David MURPHY |
| | John LAWLOR |
| Continuity | Jean SKINNER |
| Casting | Mary SELWAY |
| Screenplay | Rospo PALLENBERG |
| | John BOORMAN |
| Adapted by | Rospo PALLENBERG |
| Based on "Le Morte d'Arthur" by | Thomas MALORY |
| Director of Photography | Alex THOMSON |
| 2nd Unit Photographer | Peter MacDONALD |
| Camera Operator | Bob SMITH |
| Camera Operator (2nd Unit) | Mike FOX |
| Camera Assistants | Mike BREWSTER |
| | John CAMPBELL |
| | Peter VERSEY |
| | Shane O'NEILL |
| Electrical Supervisor | Jack CONROY |
| Electricians | Louis CONROY |
| | Derek HALE |
| | Terry EIFFE |
| | Martin HOLLAND |
| Camera Grip | Luke QUIGLEY |
| Stills Photography | Arnaud SÉLIGNAC |
| Special Photographic Effects | Oxford Scientific Films Ltd |
| Special Optical Effects | Wally VEEVERS |
| Special Effects | Peter HUTCHINSON |
| | Alan WHIBLEY |
| | Gerry JOHNSTONE |
| | Michael DOYLE |
| Model Maker | Anthony FREEMAN |
| Editor | John MERRITT |
| Assistant Editor | Michael KELLIHER |
| Production Designer | Anthony PRATT |
| Art Director | Tim HUTCHINSON |
| Assistant Art Directors | John LUCAS |
| | Bertram TYRER |
| Set Decorator | Bryan GRAVES |
| Scenic Artist | Mervyn ROWE |
| [Sculptor] | Brian MUIR |
| Property Master | Bob HEDGES |
| Production Master | Trisha EDWARDS |
| Propmen | David RAYNER |
| | Paddy MURRAY |
| Construction Manager | Joe LEE |
| Master Plasterer | Joe LEAR |
| Master Painter | Owen MURNANE |
| Costume Designer | Bob RINGWOOD |
| Wardrobe Master | Daryl BRISTOW |
| Wardrobe Mistress | Janet O'LEARY |
| Make-up | Basil NEWALL |
| | Anna DRYHURST |
| Ethnic Jewellery | Liberty's |
| Hairstyles | Ann McFADYEN |
| Hairdresser | Anne DUNNE |
| Titles/Optical Effects | General Screen Enterprises |
| Music/Music Conductor | Trevor JONES |
| Music Recording Engineers | John RICHARDS |
| | Richard LEWZEY |
| Choreography | Anthony VAN LAAST |
| Sound Recordist | Tom CURRAN |
| Sound Mixer | Doug TURNER |
| Boom Operator | John FORTUNE |
| Sound Re-recording | Delta Sound |
| Sound Editors | Pat BRENNAN |
| | Ron DAVIS |
| Dialogue Editor | Tony MESSAGE |
| Fight Arranger | William HOBBS |
| Stunts | Ken BYRNE |
| | Dominic HEWITT |
| | Paul KELLY |
| | Chris KING |
| | James McHALE |
| | Eddie McSHORTALL |
| | Donal O'FARRELL |
| | Bernard O'HARE |
| | Peter SPELMAN |
| | Alan WALSH |
| Creative Associate | Neil JORDAN |
| Transport Manager | Arthur DUNNE |
| Standby Crew | Barry CUNNINGHAM |
| | Martin FORRESTAL |
| | Terry BAKER |
| | Christy YOURELL |
| | Tom LUNDY |
| Armourers | Peter LEICHT |
| | Steve TIDIMAN |
| | Nick FITZPATRICK |
| Armour | Terry ENGLISH |