Spencer Moseby is the older brother of Marion Moseby, and only appears in "Moseby's Big Brother". He is shorter than Marion and has a harsh rivalry with him. Spencer is a millionaire, but goes bankrupt in "Moseby's Big Brother", though he regains his fortune the same episode.
Trivia
Spencer is lactose intolerant. Ironically this is what his brother uses to tease him instead of his smaller height.
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