We recently reported that the longtime host of Jeopardy!, Alex Trebek, had sadly passed away at the age of 80 after suffering from stage four pancreatic cancer. Since then, many celebrities and fans alike have been taking to social media to pay tribute and react to the sad news. The official account page for the game show confirmed the unfortunate news in a tweet. "Jeopardy! is saddened to share that Alex Trebek passed away peacefully at home early this morning, surrounded by family and friends. Thank you, Alex." Celebrities react to the death of Alex Trebek https://twitter.com/Jeopardy/status/1325490106329751553 Ken Jennings, a former Jeopardy! contestant, was one of the first to speak out. "Alex wasn’t just the best ever at what he did. He was also a lovely and deeply decent man, and I’m grateful for every minute I got to spend with him," he says in a tweet. "Thinking today about his family and his Jeopardy! family—which, in a way, included millions of us." RELATED: Breaking: Alex Trebek Dies At 80 After Being Diagnosed With Stage 4 Pancreatic Cancer https://twitter.com/KenJennings/status/1325495244784168960 "Very sorry to hear the news about Alex Trebek. Condolences to his family," says William Shatner in a tweet. Another celebrity to pay tribute is Ryan Seacrest, who said, "Alex Trebek was like a family member who I watched every night. I remember going to the set to watch him tape a show before I started my TV career. He was a big influence and one of a kind. Rest In Peace, Alex." https://twitter.com/RyanSeacrest/status/1325496669861867521 Actor Josh Gad paid tribute to the late Trebek in the best way possible. A Jeopardy! pun. "Goodbye legend. What is...greatness. RIP #AlexTrebek" https://twitter.com/joshgad/status/1325496255217238018 Actor Ryan Reynolds shares some memories with the late Trebek: "Alex Trebek was kind enough to film a cameo for our film Free Guy last year despite his battle. He was gracious and funny. In addition to being curious, stalwart, generous, reassuring and of course, Canadian. We love you, Alex. And always will." https://twitter.com/VancityReynolds/status/1325496076091076608 Two other former Jeopardy! contestants, who also played against Ken Jennings in the Jeopardy! GOAT, also paid tribute. James Holzhauer says, "It was one of the great privileges of my life to spend time with this courageous man while he fought the battle of his life. You will never be replaced in our hearts, Alex." Brad Rutter writes, "Just gutted. There will never be another. RIP, Alex, and thank you so much for everything." https://twitter.com/deAdder/status/1325516249053466624 We miss you so much, Alex. Be at peace.