Cast[]
- Moe Syzlak as Tom
- Homer as Jerry
- Bart as Nibbles/Tuffy
- Dr. Hibbert as Oggy
- Principal Skinner as Spike
- Santa's Little Helper as Tyke
- Barney as Butch
- Marge as Toodles
- Nelson as Joey
- Karney as Dee-Dee
- Jimbo as Marky
- Bernice as Olivia
- Mr. Smithers as Lightning
- Maude as Dorothy
- Mr. Burns as Ginormous
- Shaggy (Scooby-Doo) as Tom (caveman)
- Scooby-Doo as Jerry (caveman)