Mr. Grubber
First appearance | Well of Doubt
Last appearance | Well of Doubt
Name | Mr. Grubber
Gender | Male
Species | Thunderian
Affiliation | Sidekick
Weapon(s) | Bookkeeping
Voiced by  | Bob McFadden

Mr. Grubber is the sidekick of Baron Tass and is always at his side. He serves as Baron Tass' bookkeeper.


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