The cutouts were wearing t-shirts that read "fix Fakebook."
The display, titled "Four Solutions to Fix Facebook," was organized by a left-leaning global advocacy group, Avaaz, with a goal to "call attention to the hundreds of millions of fake accounts still spreading disinformation on Facebook," the organization told ABC News in a statement.
Over 880,000 people worldwide signed an open letter to Zuckerberg, internet CEOs, and government regulators asking for them to protect democracies, Avaaz wrote in the statement.
The four solutions they are proposing are that Facebook, internet CEOs and government regulators should "ban all bots, alert the public any and every time users see fake or disinformation, fund fact checkers around the world, and submit to an independent audit to review the scale and scope of fake news," Avaaz wrote in the statement.
Though they aren’t expecting a direct reaction from Zuckerberg and aren’t sure he saw the “Zuckerbots” when he arrived on the Hill, the group is also running ads in Politico and the Washington Post on “how to fix Fakebook.”
“It will be very hard for him to miss it,” a spokesperson for Avaaz said.
Zuckerberg will testify Tuesday in a highly-anticipated hearing on privacy concerns, fake news and alleged foreign efforts to use Facebook to spread disinformation before the 2016 election, issues that have set the social media giant back on its heels.
“It’s clear now that we didn’t do enough to prevent these tools from being used for harm as well,” Zuckerberg plans to tell 44 members of Congress, according to his prepared remarks, expressing contrition yet again for allowing third parties to harvest the data without the consent of Facebook’s users.
“That goes for fake news, foreign interference in elections, and hate speech, as well as developers and data privacy. We didn’t take a broad enough view of our responsibility, and that was a big mistake. It was my mistake, and I’m sorry. I started Facebook, I run it, and I’m responsible for what happens here,” Zuckerberg’s planned remarks read.
Avaaz is the same advocacy group behind last month's display of 7,000 children's shoes, also on the Capitol lawn, in memory of every child who has died due to gun violence.
Jeff Cook contributed reporting.