|Main Weapon(s)||His Horns|
|First Appearance||Clubhouse Games|
|Family and Relations|
|Mrs. Triceratops (Mother) Hornsby (Brother) Sweetie (Sister) Marmalade (Sister)|
In the cave of Triceratops, Mrs. Triceratops layed 4 of her eggs. All four of her eggs hatched into baby Triceratops. A green boy named Hornsby, a marron girl named Sweetie, an orange girl named Marmalade and a blue boy named Tonker. The Triceratops kids went to the Clubhouse Pets HQ to have fun till Tonker is the only one.
Tonker is the host of I Doubt It. In the Missions Version, He would eat leaves (That is because a Triceratops is a Herbivore).
His room is a cave with 4 beds for himself and his brother and sisters.