Joosten was born in Chicago.Her first career was as a psychiatric nurse at Michael Reese Hospital in Chicago, living in nearby Lake Forest, Illinois, where she married a psychiatrist and raised two sons. Following her 1980 divorce, she began acting in community theater in 1982, at age 42.
|Wedding Crashers||Chazz's Mom||2005|
|Bedtime Stories||Mrs. Dixon||2008|
|Alvin and the Chipmunks: The Squeakquel||Aunt Jackie||2009|