These Celebrities Are Going to the Women’s March on Washington by Valentina Zarya @FortuneMagazine January 20, 2017, 11:42 AM EST E-mail Tweet Facebook Linkedin Share icons While Donald Trump’s inauguration has reportedly had difficulty attracting big names, that doesn’t appear to be a problem for Women’s March on Washington. On Saturday, about a quarter of a million women are expected to head to the U.S. capital for the march—and there will be quite a few familiar faces among them. Among those speaking are, of course, prominent activists, including famed feminist Gloria Steinem, LGBTQ advocate and television host Janet Mock, civil rights scholar Angela Davis, and documentarian Michael Moore. Joining them will be quite a few civic leaders and politicians—such as Planned Parenthood president Cecile Richards and Washington D.C. mayor Muriel Bowser—as well as actress Ashley Judd, Scarlett Johansson, and America Ferrera. A number of A-listers aren’t speaking, but have said that they are planning to march. These include comedians Amy Schumer and Samantha Bee, actresses Olivia Wilde, Julianne Moore, Debra Messing, Patricia Arquette, Taylor Schilling, and Maggie Gyllenhaal, among others. See you at the @womensmarch in D.C. On Jan 21! #whyimarch Because women's rights are human rights. There are many reasons I'm marching. This is a big one. A photo posted by @amyschumer on Jan 13, 2017 at 8:34am PST Today, I had the honor of reciting a speech by @michelleobama at powerful gathering of activists at Riverside Church in Harlem, organized by #blackoutforhumanrights. It was in this very church that Dr King gave his now famous anti-Vietnam war, pro-social justice, speech on April 4th, 1967, exactly one year before he was murdered. Today, we performed speeches from several important activists throughout history, including Mandela, Audre Lorde, Chimamanda Ngozi Adichie, Muhammad Ali, and more. I had the privilege of sharing these words from our formidable First Lady: "Strong men, men who are truly role models, don't need to put down women to make themselves feel powerful." There is no other place I would have preferred to spend this important day. Thank you to everyone who gathered, and vowed to stay strong, and committed, as we continue to resist injustice. ❤ #MLKnow A photo posted by Olivia Wilde (@oliviawilde) on Jan 16, 2017 at 4:25pm PST When women rise, the nation rises. Join me Jan 21 at the @womensmarch. #WomensMarch @womensmarch pic.twitter.com/R4iGcrUS1N — Debra Messing (@DebraMessing) January 14, 2017 My husband @petersarsgaard was feeling only half invited 2 the @womensmarch so we renamed it the #PeopleWhoLoveWomen'sMarch now he's coming — Maggie Gyllenhaal (@mgyllenhaal) January 15, 2017 Supporters of the movement aren’t just limited to those who will be in the capital. Chelsea Handler said on Instagram that she will be marching in Sundance (she will be there for the film festival), while Laverne Cox is planning to March in Los Angeles. These are just a couple of the hundreds of demonstrations expected to take place around the world in conjunction with the Women’s March on Washington. According to the organizers’ website, 616 “sister marches” are expected to take place on Saturday, with about 2 million attendees altogether. My daughter and I will be marching on Main Street at the Sundance Film Festival. Come march with us. 9am! A photo posted by Chelsea Handler (@chelseahandler) on Jan 17, 2017 at 10:17am PST Yes to intersectional feminism and these badass women. See you on Saturday LA #WomensMarch https://t.co/nsy8ClNjoB — Laverne Cox (@Lavernecox) January 18, 2017 Subscribe to the Broadsheet, Fortune’s daily newsletter on the world’s most powerful women.