New York ? Liam Neeson looked distraught but grateful for the outpouring of sympathy as he greeted grieving family members and friends who attended a private viewing for wife Natasha Richardson on Friday.

Neeson was the last to leave the viewing at the Upper East Side’s American Irish Historical Society, where he was joined by the couple’s sons, — Micheal, 13, and Daniel, 12 — as well as Richardson’s mother, Vanessa Redgrave, and sister, Joely Richardson.

An array of famous friends came to express their sadness about the family’s sudden loss.

Neeson hugged friends as he left the society’s building at 8:40 p.m., after more than six hours of receiving condolences from friends including Mike Nichols, Diane Sawyer, Matthew Modine, Ralph Fiennes, Uma Thurman, Ethan Hawke and Sarah Jessica Parker.

Also among the stream of visitors were Kenneth Cole, Laura Linney, Fisher Stevens, Howard Stern, Stanley Tucci, Julianna Margulies and Mathilde Krim of the American Foundation of AIDS Research — amfAR. Richardson had served on the charity’s board of trustees since 2006.

“She looked incredibly beautiful,” Krim said, adding that everyone appeared to be in shock and Neeson looked distraught as he received everybody.

Earlier Friday, friends continued to express their grief over her death from the fall she took on a ski slope.

“Natasha was a very close friend of our family, so it’s been a very, very sad few days, and I think it will stay that way for a good while,” Matthew Broderick said.

Actor Jonathan Cake said: “I had dinner with her Saturday night. … She left to ski the next day.”

Theaters in London’s West End dimmed their lights Friday to mark Richardson’s death, just as Broadway theaters did Thursday. In a tribute to the stage and screen actress, the lights were lowered before the curtains went up on evening performances.

Theatergoer Andrew Nicol of London thought it was fitting. “We must not forget she was a fantastic actress in her own right, but also she was from the Redgrave family, who have given so much to the U.K. in terms of acting,” he said.

Richardson, 45, died Wednesday at Lenox Hill Hospital after falling at the Mont Tremblant resort in Quebec on Monday. The New York City medical examiner’s office ruled her death was an accident.

Nearly four hours elapsed between her fall and her admission to a hospital. The director of operations at the emergency services company that sent paramedics to the resort told Canada’s The Globe and Mail newspaper the actress initially declined medical attention, but a second 911 call was made more than two hours later. Medics returned and tended her for a half-hour before transporting her to a hospital a 40-minute drive away.