The Kids ended up in a prehistoric era. They return Tri-Spot to his family
- Satoshi "Sasshi" Imamiya (Luci Christian)
- Arumi Asahina (Jessica Boone)
- Mune-Mune (Katha Coker)
- Sayaka Imamiya (Sis, antagonist) (Monica Rial)
- Taro Imamiya (Mike MacRae)
- Arata Imamiya (John Swasey)
- Mitsuyo Imamiya (Kira Vincent Davis)
- Eutus (Chris Patton)
- Tri-Spot (Hilary Haag)
- Little Goblin (cameo) (also voiced by Kira Vincent Davis)
- Mob of Angry Cave People (antagonist)
- Wooly Mammoth
Getting Crap Past The RadarEdit
- In one part in the scene where Sasshi is naked, they used and elephant face to cove his nether reigons.
- Sis whips Taro and Arata on the back.
- Sis has a lock on her lower garment.
- Sasshi's family appered in this episode.