“The X-Files” stars Gillian Anderson and David Duchovny are the latest celebrities to have “taken a knee” in protest of President Donald Trump.

Anderson and Duchovny have joined a long line of stars to show solidarity after NFL players took a knee on Sunday to protest police injustice against minorities as the US national anthem was played.

The gesture was started by player Colin Kaepernick, who took a knee during the anthem last year, in a protest against shootings of black men by white police officers.

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Despite only a handful of players following his lead at the time, Trump has since reignited the controversy after he asked a crowd at a rally in Alabama on Friday: “Wouldn’t you love to see one of these NFL owners when somebody disrespects our flag to say, ‘Get that son of a b**ch off the field right now’?”

Anderson and Duchovny’s photograph – which was taken on the set of the longest-running science fiction series – comes after Pharrell Williams spoke out on Sunday at the Concert for Charlottesville.

“If I want to get on my knees right now for the people of my city, for the people of my state, that’s what this flag is for,” Williams told the crowd.

Despite the above, Jesse Williams has since waded into the debate and sparked controversy by saying that he thinks it’s all a marketing “scam.”

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Williams said on MSNBC: “I think…it’s also important to realize that this anthem thing is a scam. This is not actually part of football. This was invented in 2009 from the government paying the NFL to market military recruitment – to get more people to go off and fight wars to die.”

He added, “This has nothing to do with NFL or American pastime or tradition. This is to get boys and girls to go fly overseas and go kill people. They’re marketing. They’re pumping millions and millions of dollars into the NFL to get us to put on a pageant in front of NFL football games to get you to go off and fight.”

Williams was later pictured taking a knee with his “Grey’s Anatomy” co-stars in an Instagram pic shared by series creator Shonda Rhimes.