The subject of this article has been mentioned only and never actually shown in a comic book or on-screen. Despite their lack of physical appearances, information about them might still be relevant or interesting or at least worthy of documentation. Anything known about them is to be considered second-hand information.
The bastard shattered my eardrum...and he broke my arm three times. 
History
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- 1 Appearances of Mr. Mercer (Smallville)
- 1 Images featuring Mr. Mercer (Smallville)
- Quotations by or about Mr. Mercer (Smallville)
- Character Gallery: Mr. Mercer (Smallville)
Footnotes