When Equifax announced the breach, which compromised more than 145 million people's personal data, it initially required that consumers agree to arbitration if they wanted to use the credit monitoring service the company was offering to those affected, a condition the company has since nixed and Smith has called a mistake.
The unidentified impersonator sat behind the company's former CEO, Richard Smith, who was grilled about the firm's response to the breach.
No word on if "Monopoly man" plans to attend as well. What made him stand out from the rest of the gallery was his attire - a top hat, red bow tie, monocle and a faux white mustache - resembling the well-to-do Mr. Monopoly character from the board game for aspiring tycoons.
Uncle Pennybags is actually representing Public Citizen.
It's the second appearance of Rich Uncle Pennybags in the Senate in as many days.
Public Citizen took issue with forced arbitration clauses that allow companies such as Equifax EFX, +1.17% to screw over consumers and avoid punishment - kind of like a "get out of jail free" card, of course.
The protester was with the group Public Citizen, a consumer rights advocate.
"Make no mistake: Arbitration is a rigged game, one that the bank almost always wins", Werner said in a statement. Werner also appeared in Pennybags's garb this week outside the same hearing room for the bank committee's update on Wells Fargo's 2016 fake accounts scandal. "Now go collect $200". "Bank lobbyists and their allies in Congress are trying to overturn the (Consumer Financial Protection Bureau's) rule so they can continue to rip off consumers with impunity".