Mr. "O" shows his startled son how to scare up business.

Mr. "O" is a human in the Generation One continuity family.

Mr. "O" is the father of Buster Witwicky's best friend "O". He runs a diner in Portland, Oregon, called Mister "O"'s.


Marvel Comics continuity

When the Transformers make their presence known on Earth, Mr. "O" puts on an Optimus Prime costume to attract reporters and customers to his business.

We were never told what the "O" stands for.

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