Rex Sanders is a minor character in The Amazing World of Gumball FanFiction. He is Frodo Sander's 1 year old baby brother.
He is a brown puppy who usaully wears a diaper with baby clothes
Because he is still just a puppy, not much is known about personality yet. What we do know is that he likes to play alot.
Frodo looks up for his brother at all times and loves him very much.
Fido also helps taking care of his brother
Bella and Buddy
The parents of the Sanders family also help alot with the baby, especially Bella.
Rex was born on 26 July