Tramp and the Dogs (1983)

Cast:

 * Alvin Seville - Tramp (Lady and the Tramp)
 * Simon Seville - Scooby Doo
 * Theodore Seville - Pongo (101 Dalmatians)
 * Brittany - Lady (Lady and the Tramp)
 * Jeanette Miller - Georgette (Oliver and Company)
 * Eleanor Miller - Perdita (101 Dalmatians)
 * Dave Seville - Fred Flinstone (The Flinstones)
 * Miss Miller - Serena/Sailor Moon
 * Uncle Harry - Buster (Lady and the Tramp 2: Scamp's Adventure)
 * Vinny - Rita (Oliver and Company)
 * Marsha - Wilma Flintstone (The Flintstones)
 * Sherlock Holmes - ???
 * Dr. Watson - ???
 * Professor Moriarty - Chief (The Fox and the Hound)
 * Dr. Simonize - Bolt
 * Dr. Buford Bubbles - Carface (All Dogs Go to Heaven)
 * Trusty - Tito (Oliver and Company)
 * Princess Monatana - Scooby Dee (The Scooby Doo Show)
 * Miss Mayor - Amber (Scooby Doo and the Alien Invaders)