High and Grodo

High and Grodo are two major characters in the SFU. They are original characters by MarioFan2009.

Appearance
High is a brown cat with black fur on top.

Grodo is a grey cat with some white.

Overview (spoilers)
They debuted in Doggone Cats! where they came in to Mario's house. After a long chase, Mario invited them to live with them!

They appear in many more stories.

Relationships
coming soon

Trivia
coming soon