Cast: Rainn Wilson, Jenna Fischer, Creed Bratton, Melora Hardin, Angela Kinsey, Steve Carell, Ed Helms, Brian Baumgartner, John Krasinski, Oscar Nunez, Craig Robinson, Phyllis Smith, Mindy Kaling, Kate Flannery, Leslie David Baker, Paul Lieberstein, B.J. Novak

Production: Reveille Productions, Universal Media Studios (UMS), Deedle-Dee Productions

This season marked the departure of Karen Filippelli (Rashida Jones) as a regular character, although she appeared for a few seconds in the first episode, "Fun Run" and in the tenth episode, "Branch Wars", as the regional manager of the Utica branch. Relationships again emerged as the main theme of the season, with Jim Halpert (John Krasinski) and Pam Beesly's (Jenna Fischer) rising, and Michael Scott (Steve Carell) and Jan Levinson's (Melora Hardin), as well as Dwight Schrute (Rainn Wilson) and Angela Martin's (Angela Kinsey) declining. Technology was another prevalent theme as the office staff struggled with initiatives introduced by Ryan Howard (B. J. Novak) to modernize the company.