As a suspected former student went on a shooting rampage Wednesday at Marjory Stoneman Douglas High School in Florida, killing 17 people, Hollywood stars expressed their sadness and frustration on Twitter.
Ellen DeGeneres, who has supported gun control legislation, said on her social media account:
"No words, no actions, no laws are enough until we end this epidemic of school shootings in our country. My heart is with the students and parents of Marjory Stoneman Douglas High School."
Amy Schumer, who announced she tied the knot with Chris Fischer Thursday, posted on Instagram that she didn't want presents.
"Instead please consider (a) donation to everytown for gun safety," wrote Schumer, highlighting the movement to end gun violence and invoking the memory of two victims from the fatal shooting at a 2015 screening of her film Trainwreck. "Thought of Mayce and Jillian a lot yesterday and sending love to everyone who has been affected by gun violence."
Josh Gad sent a series of heartfelt tweets Thursday after learning that a family friend had been killed in the tragedy.
Gad listed several actions he was going to take following the shooting.
Gad had harsh words for Florida Sen. Marco Rubio, who has reportedly received $3 million from gun rights groups in his career.
Filmmaker Judd Apatow slammed the president in a response to Trump's tweet offering his "prayers and condolences."
"You are a dangerous idiot who is too much of a coward to reject the NRA," the Big Sick producer wrote. "All of this blood is on your hands. You set the agenda."
Similarly, Chelsea Handler told Republicans, "You all have blood on your hands," in a tweet encouraging her followers to "elect candidates that are not funded by the NRA in November."
Cher called on Congress to do more to ensure the safety of children.
"Young Ppl Should Feel & Be Protected," she tweeted. "Will Congress Ever Protect Them!?"
Actress Alyssa Milano addressed NRA members in a post that demanded, "No more. Not. One. More.
"We are screaming. No one is listening. Children are dying," she continued. "NRA members, please demand safety reform and sensible #guncontrol. Put your foot down or this nightmare will never end."
Milano's Charmed co-star Rose McGowan wrote "Our hearts are so tired of breaking, but they will continue to break because it’s all that is left to us citizens. Do better. For the love of God, do better."
Conan's Andy Richter urged followers to "vote for candidates who put the safety of our families over their own financial interests."
Hulk actor Mark Ruffalo took aim at politicians who call for prayer after mass shootings, but then do not work to fix the problem.
"Prayers without accordant action are silent lies told to oneself, heard by no God, amounting to nothing. Action is the language of truth, the prayers of the Saints," Ruffalo tweeted.
Kim Kardashian West tweeted at her nearly 59 million followers to call on politicians to do something more than pray.
"We owe it to our children and our teachers to keep them safe while at school. Prayers won't do this: action will. Congress, please do your job and protect Americans from senseless gun violence," Kardashian West wrote.
Britney Spears tweeted that her "heart breaks for the students of Marjory Stoneman Douglas High School. Keeping the victims and their families in my thoughts #PrayForParkland."
Reese Witherspoon stated on Twitter that "enough is enough."
The Office star Rainn Wilson called for action by the American people and government.
"As we send our thoughts & prayers to the people of Parkland, Florida how about we, the people & govt of America, actually DO something abt gun violence," Wilson tweeted.
Fellow Office star Jenna Fischer also tweeted about the need for change: "This only happens in America. Figure out why. Change the laws. Be a hero. Please. Be a hero."
Actress Amber Tamblyn told America to "grow a spine" in regards to finally taking action against a gun culture.
"I'm so ashamed that this is who we are," lamented singer Roseanne Cash. "We don't care enough about the lives of children to prevent the purchase of assault rifles. I woke up crying, thinking about those kids who were waiting for their college acceptances, who were just going to school. Congress, this is on you."
Actor Marlon Wayans used an expletive to express his frustration at a lack of government gun control legislation.
"IS (ANYONE) IN OUR WHITE HOUSE OR CONGRESS PLANNING ON TAKING ACTION TO TIGHTEN GUN LAWS!!!!," Wayans tweeted. "How many mass shootings must we endure before something is done to minimize this?!?!??"
Actress Patricia Arquette took on the National Rifle Association, which is opposed to gun restrictions.
"If people can blame drug dealers for the drug problem then we can blame the @NRA for the mass shooting problem," Arquette tweeted.
Actress Mia Farrow tweeted a list of congressmen who have benefited the most from NRA contributions.
Boxer Mike Tyson sent out "prayers to the families" of the victims.
Model James Charles wrote on Twitter, "my heart is broken, my heart goes out to everyone affected. This is why we need stricter gun control laws."
Comedian Mike Drucker took aim at government inaction. "I know if someone was burning down houses in my neighborhood, I'd want to really sit and think about it for a few dozen years before doing anything about it."