In 1982, she contracted
Guillain–Barré syndrome, recovering sufficiently to be cast in the starring role of
Gaby, A True Story. She is perhaps best known for her role as the dimwitted sidekick Val Toriello, on the 1990s television series
The Nanny. She made guest appearances on
Just Shoot Me! and
Strong Medicine. She also played a mysterious woman in
What I Like About You. As Rachel Levin, Chagall appeared in
Gaby: A True Story (1987) in the title role as
Gabriela Brimmer and
White Palace (1990) in the role of Rachel. She also appeared in
The Last Supper (1995). On December 6, 2004, Chagall appeared at the cast reunion for
The Nanny,
The Nanny Reunion: A Nosh to Remember. ==Filmography==