Possible Clues:

• One concerned with checks and balances
• Quick change artist?
• Bank official or narrator
• 'All told, you may get cash from one (6)'
• Seems there's a raconteur in bank
• Worker in a cage
• Sounds like advice to put that woman in The Picture as the bank official
• Narrator or bank cashier
• Cashier - vote counter - narrator
• Bank employee: in Paris she's central to transactions