Erin Foster was "not allowed to talk to anybody ... she was ignored by the main cast and will never forget being snubbed when a group food order was being taken. Speaking on her and sister ...

Erin is a sassy single mother and low-level law-office worker who becomes obsessed with a case involving a California utility company that's accused of polluting the drinking water in a small town.

Kemper, who played Erin Hannon on "The Office," got her ... While Rashida Jones wasn't part of the main cast of "The Office," she did appear in 26 episodes as the well-received Karen Filippelli.