Buster and Chauncey - the world's greatest Mouse-icians - have arrived in Oberndorf for their shot at the big time: performing for the queen at the annual Christmas Pageant! But on Christmas Eve, Burghermeister Huffenmeir finds all the preparations for the festivities destroyed and the treasure of Oberndorf missing. When he accuses Buster and Chauncey's friend Christina - an orphan in search of her long lost family - it seems certain that Christmas will be ruined. Now it's up to the Moustroes of Mistletoe to help Christina reveal the real culprits, return the treasure and show the town of Oberndorf the true meaning of Christmas.
| Actor | Role |
|---|---|
 Phil HartmanChauncey (voice) | Chauncey (voice) |
 Jim CummingsBuster (voice) | Buster (voice) |
 Lea MicheleChristina (voice) | Christina (voice) |
 Tom ArnoldFritz / Cat (voice) | Fritz / Cat (voice) |
 Marie OsmondQueen (voice) | Queen (voice) |
 Townsend ColemanFather Joseph Mohr (voice) | Father Joseph Mohr (voice) |
 Gregg EdelmanFather Joseph Mohr (singing voice) | Father Joseph Mohr (singing voice) |
| JJudith BlazerLady Gretchen (voice) | Lady Gretchen (voice) |
 Paul KandelDuke Rausch (voice) | Duke Rausch (voice) |
| HHarry GozMayor Huffenmeier (voice) | Mayor Huffenmeier (voice) |
 Earl HammondFranz Xaver Gruber (voice) | Franz Xaver Gruber (voice) |