|First Appearance (Barney and the Rocko Squad)||Enter the Rocko Squad|
|Barney and the Rocko Squad Portrayer||Ethan Kempner|
- "Really loudly, sing... SUPER SHAPES!"
- — Geo to the viewers, while building the Shape Bandit's new house.
Geo is Milli's brother. These are his powers:
- Super Shapes
- SHAPE MAGNET
- Shape SPLITTER
Geo is very nice to his sister, as he helps her stay asleep while he's around. Evil-Man, on the other hand, doesn't like it when she is sleeping (she snores loudly) and tries to wake her up.
Ethan Kempner is Geo's voice actor in Team Umizoomi, as well as Barney and the Rocko Squad.