| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alexander Salkind | Crew | Production | Producer |
 Alexandre Dumas | Crew | Writing | Novel |
 David Watkin | Crew | Camera | Director of Photography |
George MacDonald Fraser | Crew | Writing | Screenplay |
Ilya Salkind | Crew | Production | Producer, Executive Producer |
John Victor-Smith | Crew | Editing | Editor |
 Lalo Schifrin | Crew | Sound | Original Music Composer |
Michael Salkind | Crew | Production | Producer |
Pierre Spengler | Crew | Production | Producer |
 Richard Lester | Crew | Directing | Director |
Tom Buchanan | Crew | Sound | Boom Operator |
 Bob Todd | Cast | Actor | Firing Squad Officer |
 Charlton Heston | Cast | Actor | Cardinal Richelieu |
 Christopher Lee | Cast | Actor | Rochefort |
 Eduardo Fajardo | Cast | Actor | Officer |
 Faye Dunaway | Cast | Actress | Milady de Winter |
 Frank Finlay | Cast | Actor | Porthos |
 Geraldine Chaplin | Cast | Actress | Queen Anne of Austria |
Gitty Djamal | Cast | Actress | Beatrice |
 Gretchen Franklin | Cast | Actress | D'Artagnan's Mother (archive footage) (uncredited) |
 Jack Watson | Cast | Actor | Busigny |
 Jean-Pierre Cassel | Cast | Actor | Louis XIII |
 John Bluthal | Cast | Actor | English Officer/Innkeeper and other roles (voice) (uncredited) |
 Joss Ackland | Cast | Actor | D'Artagnan's Father (archive footage) (uncredited) |
 Leon Greene | Cast | Actor | Swiss Officer |
Lucy Tiller | Cast | Mother Superior | |
 Michael Gothard | Cast | Actor | Felton |
 Michael York | Cast | Actor | D'Artagnan |
 Nicole Calfan | Cast | Actress | Maid Kitty |
Norman Chappell | Cast | Actor | Submarine Inventor |
 Oliver Reed | Cast | Actor | Athos |
 Raquel Welch | Cast | Actress | Constance de Bonancieux |
 Richard Briers | Cast | Actor | Louis XIII (voice) (uncredited) |
 Richard Chamberlain | Cast | Actor | Aramis |
 Roy Kinnear | Cast | Actor | Planchet |
 Simon Ward | Cast | Actor | Duke of Buckingham |
 Sybil Danning | Cast | Actress | Eugenie |
 Ángel del Pozo | Cast | Actor | Jussac |
 Oliver MacGreevy | Cast | Actor | Headsman (uncredited) |
Tom Buchanan | Cast | Firing Squad Sergeant | |
Tyrone Cassidy | Cast | English Officer | |
Richard Adams | Cast | Actor | Tortured Thug |
| Person | Type | Job | Role(s) |
