Which billionaire appeared on a season finale of "The Office"?

The billionaire who appeared on a season finale of The Office was Warren Buffett.

Buffett appeared in “Search Committee,” the two-part finale of the show’s seventh season, which aired in 2011. The episodes follow Dunder Mifflin’s search for a new Scranton branch manager after Michael Scott’s departure. Buffett plays an interviewee being considered for the vacant position.

His cameo turns his public image as a famously frugal investor into a joke. During the interview, the character asks detailed questions about mileage reimbursement and personal phone use, making the billionaire seem more concerned with small expenses than with the prestige of the job.

Buffett was not the only recognizable guest in the finale. The episode also featured Jim Carrey, Ray Romano, James Spader, Catherine Tate, Will Arnett, and Ricky Gervais, who reprised his British Office character, David Brent. The cameo is easy to confuse with the show’s series finale, “Finale,” which aired in 2013 and had a different group of guest appearances.