<P> The episode guest stars Majandra Delfino , Blake Garrett Rosenthal , Thomas Middleditch , Matt Jones , and Tom Bower as members of Dwight 's family ; Delfino plays Dwight 's sister Fannie , Rosenthal plays Dwight 's nephew Cammy , Middleditch portrays Dwight 's brother Jeb , Jones portrays Dwight 's cousin Zeke , and Bower appears as Dwight 's great uncle Heinrich , in a deleted scene . Jones had previously appeared in the ninth season entry , `` Junior Salesman '' . </P>
who played dwight 's brother on the office
Thomas Middleditch