Despite being unknown, someone called Jo Champa has never been more overexposed.
Champa -- who once starred in an episode of "JAG" -- borrowed one of Elvira's gowns and revealed her credits at a premiere last night.
Those who can't act, flash!
Unidentified Flashing Object Spotted at Premiere
7/9/2008 10:57 AM PDT BY TMZ STAFF
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