As the season finale for The Office approaches as does Steve Carell's last day as branch manager at Dunder Mifflin, it seems like NBC is piling on the guest appearances.

Ray Romano, James Spader and Catherine Tate will all be stopping by Scranton, Pa. for the season finale of The Office, according to a report from OK! Magazine.

Ricky Gervais and Will Arnett have already signed on for the May 19 finale. It has yet to be revealed who will replace Carell's character, Michael Scott.

Gervais has already said that he does not want the role as manager of Dunder Mifflin. It was rumored that Will Ferrell, who is already on board for four episodes that will begin airing April 14 would take over the role but that was quickly dispelled. Romano is busy with Men of a Certain Age, and Arnett recently signed onto a comedy pilot.

It is unknown whether Spader or Tate will take on that role.