In Disney's take on the Alexander Dumas tale, Mickey Mouse, Donald Duck and Goofy want nothing more than to perform brave deeds on behalf of their queen (Minnie Mouse), but they're stymied by the head Musketeer, Pete. Pete secretly wants to get rid of the queen, so he appoints Mickey and his bumbling friends as guardians to Minnie, thinking such a maneuver will ensure his scheme's success. The score features songs based on familiar classical melodies.
| Actor | Role |
|---|---|
 Wayne AllwineMickey Mouse (voice) | Mickey Mouse (voice) |
 Tony AnselmoDonald Duck (voice) | Donald Duck (voice) |
 Bill FarmerGoofy / Pluto / Additional Voices (voice) | Goofy / Pluto / Additional Voices (voice) |
 Russi TaylorMinnie (voice) | Minnie (voice) |
 Tress MacNeilleDaisy (voice) | Daisy (voice) |
 Jim CummingsPete (voice) | Pete (voice) |
 April WinchellClarabelle / Additional Voices (voice) | Clarabelle / Additional Voices (voice) |
 Jeff BennettThe Beagle Boys / Additional Voices (voice) | The Beagle Boys / Additional Voices (voice) |
 Maurice LaMarcheThe Beagle Boys / Additional Voices (voice) | The Beagle Boys / Additional Voices (voice) |
 Rob PaulsenThe Troubadour (voice) | The Troubadour (voice) |
| SShannon GregoryAdditional Voices (voice) | Additional Voices (voice) |
 Frank WelkerAdditional Voices (voice) | Additional Voices (voice) |
 Jess HarnellMajor General (voice) (uncredited) | Major General (voice) (uncredited) |
| LLinda HarmonSinger (voice) (uncredited) | Singer (voice) (uncredited) |