Yara Shahidi, Mark Hamill, and More Celebs Tweet Support for School Walkout

Protesters taking part in the National School Walkout.

On the one-month anniversary of the tragic shooting at Marjory Stoneman Douglas High School in Florida, thousands of students walked out of classrooms and schools to protest gun violence. As they started the 17-minute walkout — a minute for each person who died in the attack — Hollywood stars voiced their support on Twitter. Grown-ish star Yara Shahidi, backed her cousin’s decision to take part in the walkout today, while Mark Hamill followed the protest from Dublin, Ireland. Some, like Debra Messing, proudly rallied at a local school walkout in New York. See more of the tweets below.

Kerry Washington.

Olympic figure skater Adam Rippon.

I, Tonya actress Allison Janney.

Chelsea Peretti.

Miley Cyrus.

Shameless actress Emmy Rossum.

Emmy winner Uzo Aduba.

Captain America, Chris Evans.

Wrinkle in Time director Ava DuVernay.

The Greatest Showman star Zendaya.

Morgan Freeman.

Katy Perry.

Lin-Manuel Miranda.

Josh Gad.

Mariska Hargitay.

Yara Shahidi, Mark Hamill, and More Support School Walkout