Portrayed by

Jan Crawford) (classic series)
Jeremy Suarez (live-action) Voice Only

Russell Cosby is Bill's younger brother and the youngest of the gang. He plays a xylophone with cans and spoons. Him, MushmouthDumb Donald and Rudy wear hats. In the grave yard part from the movie he was 68 years old and had a grey beard. He hates going to the doctor. He tends to give away secrets that the gang does not want him to say.

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