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'School of Rock' Cast - Where Are They Now?

Joan Cusack – Principal Rosalie “Roz” Mullins

Then: Before School of Rock, Joan Cusack starred in 1984′s Sixteen Candles, 1988′s Working Girl and Married to the Mob, 1990′s My Blue Heaven, 1993′s Addams Family Values, 1995′s Nine Months, 1997′s In & Out, 1999′s Runaway Bride, Saturday Night Live from 1985-1986, and What About Joan from 2000-01.

Now: Joan starred in 2004′s Raising Helen, 2005′s Ice Princess, 2006′s Friends with Money, 2007′s Martian Child, 2009′s Confessions of a Shopaholic and My Sister’s Keeper, 2012′s The Perks of Being a Wallflower, 2015′s The End of the Tour, Shameless from 2011-2015 (which she won an Emmy for), and 2018′s Instant Family. She also lent her voice to 2005′s Chicken Little, the Toy Story franchise, and 2011′s Arthur Christmas and Mars Needs Moms.

She is also set to star in the 2019 animated film Klaus.

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