On Instagram, Dunham posted a photo of a number of celebrities in Tornillo with protest signs in Texas.
"We came to Tornillo, Texas, to show our solidarity with the separated families, the children who are alone and the parents who mourn and the undocumented Americans who lose more than I can fathom," Dunham wrote , "Thank you, Tornillo, for giving us a warm welcome and for remembering to get up together."
Tornillo has a US-Mexico border checkpoint and temporary accommodation for unaccompanied minor migrants.
There were also protests in other cities along the border. In McAllen, Texas, demonstrators blocked a bus on Saturday leaving a migrant detention center on Saturday.
Dunham joined the Tornillo protest by prominent politicians and cultural figures as well as ordinary citizens who wanted to be heard Minister of Housing and Urban Development Julian Castro urged Trump to reunite the children immediately with their families.
"This president and his government ̵
Actress Amber Heard uploaded a photo of Tornillo Port of Entry on Instagram. In the photo she wears a sign saying, "Apartheid was legal, the Holocaust was legal, legality is a matter of power, not justice."
Sia, the singer, asked her followers to donate to Voto Latino, a nonprofit political organization, with the aim of bringing Hispanic voters to the polls, and said she would bring all donations up to $ 100,000.
Dianne Gallagher of CNN contributed to this report.