Sydney has two older brothers, Greg and Bill, and two older sisters, Patricia and Sandra.
Sydney and her husband, artist Rob Powers, welcomed their first child, son Chasen August Powers on Thursday, May 31, 2007.
Sydney's first on-screen kiss was in a 1983 TV movie Two Kinds of Love.
Syndey speaks Italian, Spanish and French.
Sydney's middle name is Margaret.
In 1979, Sydney landed her first movie role. It was a drama movie titled The Night Rider.
In 1977, Sydney did her first TV commercial for Dancerella ballerina doll. After that, Sydney starred in many other commercials such as Jello, Pop Tarts, Barbie Dolls, McDonalds and many other.
Sydney made her big debut on television in an 1983 TV mini-series "Thorn Birds."
During late 1999, Sydney temporarily replaced Susan Ward on Sunset Beach, playing Meg Cummings.
In 1996, Sydney and Keith Hamilton Cobb won a Soap Opera Digest Award for Hottest Romance in a soap opera. They played together in All My Children.
In 1995, Sydney was nominated second time for a Soap Opera Digest Award, for her performance in ABC's All My Children.
In 1993, Sydney was nominated for a Soap Opera Digest Award for Outstanding Female Newcomer, for starring in Santa Barbara.
In 1995, Sydney was nominated for her second Daytime Emmy Award, this time for her performance in ABC's soap opera All My Children.
In 1993, Sydney was nominated for a Daytime Emmy Award for her performance in NBC's soap opera Santa Barbara.
Sydney has two older sisters named Patricia and Sandra, and two older brothers named Bill and Greg.
She has brown eyes and brown hair.
Sydney married Robert Powers on September 30, 1995.
She is 5' 4" (1.63 m).
She began her career on stage with her parents, singers Hank and Shari Penny.
Syndey: (after joining the cast of Santa Barbara) The last character I played was a victim. This time, I hope to be a victimizer.
Syndey: I crave progress, growth and change like some people crave chocolate.
Sydney: (about the female characters being raped on a soap opera) I think you... get to a point where you're belittling the experience, trivializing it for sensationalism.
Syndey: (about returning to the cast of All My Children) It was very emotional yesterday, with people saying, "Welcome home."