Mare Winningham is a critically acclaimed performer on stage, television, and occasionally feature films. She began her career performing a song on TV's notorious Gong Show. While playing Maria in a high school production of {+The Sound of Music}, opposite classmate Kevin Spacey, Winningham was spotted by Hollywood agent Meyer Mishkin who landed her a role in the short-lived TV Western series The Young Pioneers in 1978.
This led to her first TV movie, Special Olympics. For her role as an independent-minded farmer's daughter in 1980's Amber Waves, she won an Emmy. That year, Winningham made her feature-film debut starring opposite Paul Simon in Robert M. Young's One-Trick Pony. She fared better in her next film, Threshold (1981), where she played the recipient of an artificial heart. Winningham then went on to play a number of supporting roles and the occasional lead in a series of unremarkable films. She continues to fare much better on television, where she has appeared in popular films such as The Thorn Birds (1983) and Helen Keller: The Miracle Continues (1984). ~ Sandra Brennan, All Movie Guide. 