Nick Viall is ready to shake things up on . ET spoke with the 40-year-old former Bachelor ahead of his long-awaited appearance on Katie Thurston's season of the show, and teased what fans can expect when he stops by to hold the men accountable on Monday night's episode.Nick's appearance couldn't come soon enough, as last week's episode saw Katie send Cody home after Aaron's accusations that he wasn't there for the right reasons.
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