Majandra Delfino will play Fannie and Blake Garrett will take Cameron .
The Dwight Schrute spinoff , The Farm , has already cast Rainn Wilson as Dwight Schrute , but now , his sister , Fannie , has been cast , along with nephew Cameron .
Majandra Delfino will play Fannie and Blake Garrett will take nephew .
The Dwight Schrute spinoff , The Farm , has already cast Rainn Wilson as Dwight Schrute , but now , his sister , Fannie , has been cast , along with nephew Cameron .