|Number of Appearances||1|
|First Episode||Mailer Daemon|
Jeffrey Characterwheaties is the professional actor that portrays the grotesque caricature of Jason Mantzoukas. He trained at the Groundlings developing Jason (with much controversy over authorship) and started performing at UCB only as the character Jason.
|Episode||Release Date||Other Characters||Guests|
|378: Mailer Daemon||9.28.15||The Mailer Daemon, Live Taylor, Fabrice Fabrice, Dr. Conrad Murray||Jason Mantzoukas, Nick Kroll|