He is voiced by Dave "Squatch" Ward.
Aldo is a friendly alligator who likes Bill. However, he feels insecure about this relationship because of his fellow gators' judgement. He often receives grief from his fellow gators on being a "duck lover".
In general, Aldo stands out as the most compassionate creature who cares about others.
- Aldo has a blind Uncle Artie and a baby cousin Andy.
- He was once was the cook at the bowling ball factory in Swampwood. However, he transferred to the assembly line after he befriended Bill as he did not want to cook any more ducks.