 | Debbie Winslow |
 | Mazie |
 | Giuseppe (voice) |
 | Bosco (voice) |
 | Marmaduke |
 | Chupadogra (voice) |
 | Jezebel (voice) |
 | Phil Winslow |
 | Don Twombly |
 | (voice) (as Tom Wilson) |
 | Raisin (voice) |
 | Carlos (voice) |
 | |
 | Anton Harrison |
 | Emergency Road Worker |
 | Tethered Fireman |
Bosco's Owner | |
Beagle (voice) |