Mister O

Mister O is a human from the Marvel portion of the Generation 1 continuity family.

Mister O shows his startled son how to scare up business.

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

Fiction

Marvel The Transformers comics

When the Transformers made their presence known on Earth, Mister O put on an Optimus Prime costume to attract reporters and customers to his business. His son was not impressed.

We were never told what the "O" stands for. The Last Stand

2005 IDW continuity

Verity Carlo completed the final Wreckers: Declassified entry while dining at Mister O's Restaurant. Last Stand of the Wreckers #5