Claim: Joan Cusack was employed with Frank Oz.

Joan Cusack -LRB- -LSB- ˈkjuːsæk -RSB- , born October 11 , 1962 -RRB- is an American actress . She received Academy Award nominations for Best Supporting Actress for her roles in the romantic comedy-drama Working Girl -LRB- 1988 -RRB- and the romantic comedy In & Out -LRB- 1997 -RRB- , as well as one Golden Globe nomination for her performance in the latter . She is also known as the voice of Jessie in the Toy Story franchise .   Cusack was a cast member on the comedy sketch show Saturday Night Live from 1985 to 1986 . She starred on the Showtime hit drama/comedy Shameless as Sheila Gallagher -LRB- née Jackson -RRB- , a role for which she has received five consecutive Emmy Award nominations , winning for the first time in 2015 . She is the sister of actress Ann and actor John Cusack .