 The episode also guest stars Mike Starr as Grotti, the Insurance salesman.The plot of the episode was revealed by executive producer of "The Office", Paul Lieberstein at the Television Critics Association press tour.In its original American broadcast, "Mafia" was viewed by 8.03 million viewers, with a 4.1 rating and a 10 share in the 18–49 demographic coming second in its timeslot after "Grey's Anatomy" going down seven-tenths from last week's episode, "Niagara" according to the Nielsen Media Research.