At age 4, Nelson played one of
Henry Fonda and
Lucille Ball's daughters in
Yours, Mine and Ours (1968). Her future co-star
Tom Bosley also appeared in that film. She has been a professional dancer and toured throughout
California in a dance company while still in grammar school. She performed in The
Edinburgh Fringe Festival after graduation from high school. In 1982, she played "
valley girl" Jennifer DeNuccio on the television series
Square Pegs, and in 1986 she landed the role of the
anorexic daughter in
Paul Mazursky's film
Down and Out in Beverly Hills. Throughout the 1980s and 1990s, Nelson made guest appearances on television series including
Family Ties,
St. Elsewhere,
Murphy Brown,
The Nanny,
7th Heaven,
Melrose Place,
Will & Grace,
Matlock,
Diagnosis Murder, and
Seinfeld, where she was well known as the girl dating George who happened to "look" like Jerry. Nelson co-starred in the television series
The Father Dowling Mysteries as Sister Stephanie for its three seasons. She was also a series regular on
Aaron Spelling's drama
Glitter, the sitcom
A League of Their Own, and the Australian television series
The Man from Snowy River. She was in the touring company and on Broadway as Rizzo in
Grease in 1995. Nelson has appeared in several theatrical releases and over 20 television movies, including
The Perfect Nanny in 2000,
The Perfect Husband, ''Kate's Secret
, The Fight for Jesse
, and The Rival'' in 2006. She has written a book about her personal experience and a movie script about her family,
The Nelsons. == Personal life ==