Prominent American celebrities have taken to YouTube to try and convince Republican Electoral College members to vote their conscience against President-elect Donald Trump.

But in a video published Friday, and first reported on Saturday by Politico, “West Wing” actor Martin Sheen incorrectly refers to the Kansas electoral college voter that he’s trying to convince.

“As you know Mr. McMillan, our founding fathers built the electoral college to safeguard the American people from the dangers of a demagogue, and to ensure that the presidency only goes to someone who is, to an eminent degree, endowed with the requisite qualifications,” Sheen says in the video.

The person he’s talking to seems to be Kansas Electoral College voter Ashley McMillan.

But the voter, whose full name is Ashley McMillan Hutchinson, is not Mr. McMillan. She’s a woman. And she’s the vice chairwoman of the Kansas Republican Party who wrote in The Wall Street Journal recently that “I won’t violate the will of the people of Kansas simply because coastal elites think Mr. Trump tweets too much.”

According to a Politico listing of all 538 electors, there is no mention of another person named Ashley or McMillan.

Sheen is one of a handful of celebrities who have spoken out in recent days to persuade Electoral College members to ignore their state’s pick for president to keep Trump from officially winning the White House. More than 30 electors would need to switch from Trump to make that happen. But chances of that happening do not seem likely.

Electoral College voters will cast their voters on Monday to formally pick the president of the United States. Trump, the GOP’s pick for president, won the electoral college with more than 300 electoral college voters based off the election results. Democrat Hillary Clinton won the nationwide popular vote by more than 2 million.

Kansas Electoral College members will cast their ballots Monday at noon in the state Capitol’s Senate chambers.