Colbert will be playing the oft-mentioned but previously unseen Broccoli Rob, a member of Andy’s (Helms) college a cappella group Here Comes Treble.
Andy will learn that Rob has been telling a different story about the group’s history, which will almost certainly put Andy’s anger-management training to the test.
EW also describes Broccoli Rob as “smarmy [and] competitive,” which seems like it should be right in Colbert’s wheelhouse.
“The Office” begins its final season at 9 p.m. ET Thursday (Sept. 20) on NBC.