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.
| Movie | Wish Wizard | Mrs. Inkwell | 2014-04-29 |
| Movie | Mega Python vs. Gatoroid | Angie | 2011-01-29 |
| Movie | Annul Victory | Self | 2009-05-02 |
| Movie | Alvin and the Chipmunks: The Squeakquel | Aunt Jackie | 2009-12-21 |
| Series | The Mentalist | Gloria Williams | 2008-09-23 |
| Movie | Bedtime Stories | Mrs. Dixon | 2008-12-24 |
| Movie | Jane Doe: Ties That Bind | Cara Goodman | 2007-03-17 |
| Movie | Rails & Ties | Mrs. Brown | 2007-09-01 |
| Movie | The TV Set | Lois | 2007-04-06 |
| Series | The Greg Behrendt Show | Unknown | 2006-09-12 |
| Series | The Closer | Unknown | 2005-06-13 |
| Movie | Wedding Crashers | Chazz's Mom | 2005-07-13 |
| Series | Grey's Anatomy | Stephanie Drake | 2005-03-27 |
| Movie | Hostage | Louise | 2005-03-10 |
| Series | My Name Is Earl | Unknown | 2005-09-20 |
| Movie | Cheaper by the Dozen 2 | Theatre Patron | 2005-12-21 |
| Series | Love, Inc. | Unknown | 2005-09-22 |
| Series | Desperate Housewives | Karen McCluskey | 2004-10-03 |
| Movie | Combustion | Miss Knight | 2004-11-29 |
| Movie | Breaking Dawn | Neighbor | 2004-10-16 |
| Series | Las Vegas | Unknown | 2003-09-22 |
| Movie | Wasabi Tuna | Erma | 2003-08-20 |
| Series | Hope & Faith | Funeral Guest | 2003-09-23 |
| Series | Joan of Arcadia | Unknown | 2003-09-26 |
| Movie | Secret Santa | Winifred | 2003-12-14 |
| Movie | Red Roses and Petrol | Nurse | 2003-11-05 |
| Series | Everwood | Unknown | 2002-09-16 |
| Series | Monk | Neysa Gordon - Former Babysitter | 2002-07-12 |
| Series | Less than Perfect | Unknown | 2002-10-01 |
| Series | The Division | Unknown | 2001-01-07 |
| Series | Scrubs | Unknown | 2001-10-02 |
| Series | Reba | Unknown | 2001-10-05 |
| Series | Titus | Unknown | 2000-03-20 |
| Series | Even Stevens | Unknown | 2000-06-17 |
| Movie | Hellraiser: Inferno | Mother | 2000-10-31 |
| Series | Gilmore Girls | Unknown | 2000-10-05 |
| Series | Curb Your Enthusiasm | Unknown | 2000-10-15 |
| Series | Providence | Unknown | 1999-01-08 |
| Series | Judging Amy | Unknown | 1999-09-19 |
| Series | Thanks | 1999-08-02 | |
| Movie | Kiss Toledo Goodbye | Wheelchair Lady | 1999-11-22 |
| Series | The West Wing | Mrs. Landingham | 1999-09-22 |
| Movie | Phoenix | Esther | 1998-09-04 |
| Series | Will & Grace | Unknown | 1998-09-21 |
| Series | Becker | Unknown | 1998-11-02 |
| Series | Just Shoot Me! | Unknown | 1997-03-04 |
| Series | Ally McBeal | Unknown | 1997-09-08 |
| Series | Buffy the Vampire Slayer | Unknown | 1997-03-10 |
| Series | Brooklyn South | Unknown | 1997-09-22 |
| Movie | Best Men | Edie | 1997-10-17 |
| Series | Dharma & Greg | Unknown | 1997-09-24 |
| Series | 3rd Rock from the Sun | Cafeteria Lady | 1996-01-09 |
| Series | Boston Common | Unknown | 1996-03-21 |
| Series | Spin City | Unknown | 1996-09-17 |
| Series | Arli$$ | Unknown | 1996-08-10 |
| Movie | The Stranger Beside Me | Judge | 1995-09-17 |
| Series | ER | Unknown | 1994-09-19 |
| Series | Frasier | Vera | 1993-09-16 |
| Series | The X-Files | Unknown | 1993-09-10 |
| Series | Home Improvement | Unknown | 1991-09-17 |
| Movie | The Package | Waitress | 1989-01-25 |
| Series | Family Matters | Unknown | 1989-09-22 |
| Series | Seinfeld | Unknown | 1989-07-05 |
| Series | Roseanne | Unknown | 1988-10-18 |
| Movie | Grandview, U.S.A. | Mrs. Clark | 1984-08-03 |