Episode 899 - Nell Scovell / Bill Hader

Episode 540 - Ms. Pat

Episode 541 - Larry Wilmore

Episode 542 - Bob Rubin

Episode 543 - Martin Starr

Episode 544 - Andre Royo

Episode 900 - Nick Nolte

Episode 901 - Sean Penn / Lynn Shelton

Episode 902 - They Might Be Giants

Episode 903 - Neil Patrick Harris / Michael Imperioli