LOS ANGELES — Catherine O’Hara, a gifted Canadian-born comic actor and SCTV alum who starred as Macaulay Culkin’s harried mother in two Home Alone movies and won an Emmy as the dramatically ditzy wealthy matriarch Moira Rose in Schitt’s Creek, died Friday. She was 71.
Ms. O’Hara died at her home in Los Angeles “following a brief illness,” according to a statement from her representatives at Creative Artists Agency. Further details were not immediately available.
Ms. O’Hara’s career was launched with the Second City comedy group in Toronto in the 1970s. It was there that she first worked with Eugene Levy, who would become a lifelong collaborator — and her Schitt’s Creek costar. The two would be among the original cast of the sketch show SCTV, short for “Second City Television.” The series, which began on Canadian TV in the 1970s and aired on NBC in the U.S., spawned a legendary group of esoteric comedians that Ms. O’Hara would work with often, including Martin Short, John Candy, Andrea Martin, Rick Moranis, and Joe Flaherty.
Ms. O’Hara would win her first Emmy for her writing on the show.
Her second, for best actress in a comedy series, came four decades later, for Schitt’s Creek, a career-capping triumph and the perfect personification of her comic talents. The small CBC series created by Levy and his son, Dan, about a wealthy family forced to live in a tiny town would dominate the Emmys in its sixth and final season. It brought Ms. O’Hara, always a beloved figure, a new generation of fans and put her at the center of cultural attention.
She told the Associated Press that she pictured Moira, a former soap opera star, as someone who had married rich and wanted to “remind everyone that (she was) special, too.” With an exaggerated Mid-Atlantic accent and obscure vocabulary, Moira spoke unlike anyone else, using words like “frippet,” “pettifogging” and “unasinous,” to show her desire to be different, Ms. O’Hara said. To perfect Moira’s voice, Ms. O’Hara would pore through old vocabulary books, “Moira-izing” the dialogue even further than what was already written.
Ms. O’Hara also won a Golden Globe and two SAG Awards for the role.
At first, Hollywood didn’t entirely know what to do with Ms. O’Hara and her scattershot style. She played oddball supporting characters in Martin Scorsese’s 1985 After Hours and Tim Burton’s 1988 Beetlejuice — a role she would reprise in the 2024 sequel.
She played it mostly straight as a horrified mother who accidentally abandoned her child in the two Home Alone movies. The films were among the biggest box office earners of the early 1990s and their Christmas setting made them TV perennials. They allowed her moments of unironic warmth that she didn’t get often.
Her co-star Culkin was among those paying her tribute Friday.
“Mama, I thought we had time,” Culkin said on Instagram alongside an image from Home Alone and a recent recreation of the same pose. “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.”
Meryl Streep, who worked with O’Hara in Heartburn, said in a statement that she “brought love and light to our world, through whipsmart compassion for the collection of eccentrics she portrayed.”
Roles in big Hollywood films didn’t follow Home Alone, but Ms. O’Hara would find her groove with the crew of improv pros brought together by Christopher Guest for a series of mockumentaries that began with 1996’s Waiting for Guffman and continued with 2000’s Best in Show, 2003’s A Mighty Wind, and 2006’s For Your Consideration.
Best in Show was the biggest hit and best-remembered film of the series. She and Levy play married couple Gerry and Cookie Fleck, who take their Norwich terrier to a dog show and constantly run into Cookie’s former lovers along the way.
“I am devastated,” Guest said in a statement to the AP. “We have lost one of the comic giants of our age.”
Born and raised in Toronto, Ms. O’Hara was the sixth of seven children in a Catholic family of Irish descent. She graduated from Burnhamthorpe Collegiate Institute, an alternative high school. She joined Second City in her early 20s, as an understudy to Gilda Radner before Radner left for Saturday Night Live. (Ms. O’Hara would briefly be hired for “SNL” but quit before appearing on air.)
Nearly 50 years later, her final roles would be as Seth Rogen’s reluctant executive mentor and freelance fixer on The Studio and a dramatic turn as therapist to Pedro Pascal and other dystopia survivors on HBO’s The Last of Us. Both earned her Emmy nominations. She would get 10 in her career.
“Oh, genius to be near you,” Pascal said on Instagram. “Eternally grateful. There is less light in my world.”
Earlier this month, Rogen shared a photo on Instagram of him and Ms. O’Hara shooting the second season of “The Studio.”
She is survived by her husband, Bo Welch, a production designer and director who was born in Yardley; sons Matthew and Luke; and siblings Michael O’Hara, Mary Margaret O’Hara, Maureen Jolley, Marcus O‘Hara, Tom O’Hara, and Patricia Wallice.
