Chu Chu

Chu Chu (voiced by Don Messick) is the family dog. He assists in solving cases and is an expert in making sound effects. Chu Chu can howl to sound like a police car siren whenever the kids in the Chan Van need to places very fast. He is usually seen with the four youngest children.

Trivia
Although Chu Chu shares the same voice actor as Scooby-Doo and is just as sentient, he can’t talk.