Catherine O'Hara's death at age 71 has rocked the celebrity world, with many of her former costars and friends reacting to the tragic news. O'Hara died on Friday, January 30, at her home in Los Angeles "following a brief illness," according to a statement from her agency, Creative Artists Agency. The legendary actress was known for her roles in Home Alone, Beetlejuice, Schitt's Creek and more. The Last of Us star Pedro Pascal was among the first to react to the news after O'Hara appeared in the HBO drama's second season in 2025. "Oh, genius to be near you. Eternally grateful," he wrote via Instagram. Catherine O'Hara's Cause of Death Remains Unclear After 'Brief Illness' Keep scrolling to see what stars have said about O'Hara's death: Pedro Pascal Pedro Pascal, who stars as Joel Miller in The Last of Us, captioned an Instagram photo of himself with O'Hara, "Oh, genius to be near you. Eternally grateful. There is less light in my world, this lucky world that had you, will keep you, always. Always. The one and ONLY Catherine O'Hara." Getty Images (3) Michael McKean O'Hara's A Mighty Wind costar Michael McKean wrote via X, "Only one Catherine O'Hara, and now none. Heartbreaking." Justin Theroux Justin Theroux, who starred in 2024's Beetlejuice Beetlejuice with O'Hara, shared a photo of a chair with her name on it on a film set. "🕊️Oh Catherine. You will be so so missed," he wrote. Pedro Pascal/Instagram Amy Schumer Comedian Amy Schumer commented on a post about O'Hara's death, "Ugggg legend. No one funnier." Olivia Munn "Absolutely heartbreaking. She was the kindest person in our business," actress Olivia Munn added of O'Hara. Macaulay Culkin Macaulay Culkin, who played O'Hara's onscreen son in Home Alone, paid tribute to the actress via Instagram. "Mama. I thought we had time," he wrote alongside a throwback photo from the film and a more recent snap. "I wanted more. I wanted to sit in a chair next to you. I heard you. But I had so much more to say. I love you. I'll see you later." Catherine O'Hara Was Hospitalized in 'Serious' Condition Hours Before Death Rita Wilson O'Hara's close friend Rita Wilson wrote via Instagram, "Catherine O'Hara - a woman who was authentic and truthful in all she did. You saw it in her work, if you knew her you saw it in her life, and you saw it in her family. Bo, Luke and Matthew, our deepest sympathies. May Catherine rest in peace. May her memory be eternal." Josh Gad Josh Gad expressed heartbreak over O'Hara's death after she appeared in the John Hughes cast reunion episode of his YouTube series "Reunited Apart" in 2020. "I don't understand what I'm seeing. I can't bring myself to believe she is gone," he wrote via Instagram. "Why is the world such a heartbreaking place right now? I truly cannot process how to say goodbye to someone so full of life who seemed to just be hitting her prime." Gad continued, "Goodbye legend. Thank you for making us laugh until we hurt ... which is why right now we are all hurting so damned much knowing we will never again get those laughs. RIP. My love and deepest condolences go out to her entire family." Ike Barinholtz O'Hara's The Studio costar Ike Barinholtz wrote alongside a photo of the pair, "I never in a million years thought I would get to work with Catherine O'Hara, let alone become friends with her. So profoundly sad she's somewhere else now. So incredibly grateful I got to spend the time I did with her. Thank you Catherine I love you ❤️." Jenni Farley Jenni "JWoww" Farley shared throwback photos of her family's Schitt's Creek-themed Halloween costumes, as well as a photo of O'Hara. "My heart is truly broken. Catherine O'Hara was my favorite actor, and Moira Rose was my favorite character of all time," she wrote, referring to O'Hara's character on the show. "She gave us laughter, brilliance, and a character that felt larger than life yet deeply human. I had the craziest parasocial relationship with her because she was my whole childhood ... Moira got me through some tough times ..." Laura Whitmore Irish media personality Laura Whitmore paid tribute to O'Hara via social media. "The best. Catherine O Hara - What a legacy! So shocked and saddened by her passing ❤️ she brought so many iconic characters to life but I'd like to especially thank her for bringing us Moira Rose during lockdown. Very grateful for that joy!" she wrote. Andy Cohen Andy Cohen wrote that he "fell in love at first sight" with O'Hara when he saw her in the 1976 sketch comedy series Second City Television (SCTV). "And it only got stronger," he added. "Rest In Peace, Angel Catherine O'Hara." Elizabeth Banks Elizabeth Banks shared a clip from O'Hara's 1996 film Waiting for Guffman and wrote, "She was an all-timer. Her memory and work is a blessing. Rest peacefully." Michael Keaton Beetlejuice star Michael Keaton wrote via Instagram, "We go back before the first Beetlejuice. She's been my pretend wife, my pretend nemesis and my real-life, true friend. This one hurts. Man, am I gonn