Natasha Richardson and Liam Neeson Natasha Richardson and Liam Neeson

Natasha Richardson's colleagues offered their fondest memories of the actress, who died after suffering head injuries while skiing.

"She was a wonderful woman and actress and treated me like I was her own," said Lindsay Lohan, played Richardson's cute redheaded twin daughters in Disney's remake of The Parent Trap. "My heart goes out to her family. This is a tragic loss."

Richardson, a Tony-winning actress and heir of the Redgrave acting dynasty, fell during a private skiing lesson Monday in Quebec. She initially seemed to be fine, but later complained of not feeling well. She was hospitalized in Montreal on Tuesday and then flown to a New York hospital.

Richardson's husband, Liam Neeson, announced his wife's death Wednesday night in a written statement. A cause of death was not given, but autopsy results could be available on Thursday, according to The Associated Press.

Jane Fonda wrote in her blog about the first time she met Richardson on the set of Julia, a 1977 film starring Fonda and Vanessa Redgrave, Richardson's mother. "She was a little girl but already beautiful and graceful," Fonda wrote. "It didn't surprise me that she became such a talented actor. It is hard to even imagine what it must be like for her family. My heart is heavy."

In addition to Neeson and Redgrave, Richardson leaves behind sons Micheál, 13, and Daniel, 12; sister Joely Richardson and aunt Lynn Redgrave.

Richardson — whose film roles included The Handmaid's Tale, Patty Hearst and Nell, in which she starred with Neeson — divided her time between the stage and screen. Judi Dench, who costarred with Richardson in a 1987 TV production of Henrik Ibsen's Ghosts, said Richardson flourished in both formats.

"She had an incredibly luminous quality that you seldom see, and a great sense of humor," Dench said. "I thought she was a really great actress and seemed to simply shine in both film and theater."

Richardson won a Tony for her portrayal of Sally Bowles in the 1998 revival of Cabaret. Sam Mendes, who directed Cabaret, said "It defies belief that this gifted, brave, tenacious, wonderful woman is gone."

Richardson's Cabaret costar, Alan Cumming, said on his website he was "devastated."

"The term 'life force' seems trite, but that is what she was: A woman who powered through life and fascinated everyone she encountered," Cumming wrote. "I have been thinking about the times I spent with her since I heard the news of her tragic accident, and the strongest memory I have is of her laughter, her unmistakable throaty laugh. I think that's a great way to remember someone.

"She was a brilliant actress," he said. "Liam and the boys and her whole family have lost an amazing woman. We all have. Goodbye, darling."

The entire Broadway community will also show a signf of support Thursday night. Theater marquees will be dimmed for one minute at 8 p.m., the traditional starting time for evening performances of Broadway shows.