TVLine has confirmed that the Colbert Report host will drop by the NBC comedy’s ninth and final Halloween-themed installment as the oft-mentioned but never-before-seen Broccoli Rob. EW.com first reported the casting news.
A onetime member of Andy’s Cornell a cappella group Here Comes Treble, Rob (finally) makes his debut in the Oct. 25 episode after the Dunder Mifflin boss gets wind that his frenemy is rewriting their musical history in a much-too-dissonant key.
Colbert and Helms, along with ex-Office star Steve Carell, worked together on Comedy Central’s The Daily Show from 2002-2005.
The Office, meanwhile, kicks off its farewell season tonight at 9/8c.