|First Appearance (Xianghua in Rockoland)||Welcome, Sleepy Friends!|
|Xianghua in Rockoland Portrayer||Hank Azaria|
- "Have no fear! The great T-Rex is here!"
- — Fretosaurus during the events of Xianghua in Rockoland.
Fretosaurus is a nice tyrannosaurus rex, like Barney from Barney and the Rocko Squad.
Fretosaurus is voiced by Simpsons voice actor Hank Azaria during Xianghua in Rockoland.