Nikola Messla



 Nikola Messla  is a Grouch  professor at "  Putrid University  " ( P . U . ) who appears in  episode 4260  of Sesame Street.

Oscar takes the online  Grouch ology class from the  college , learning how to be a  Grouch  scientist. Messla instructs Oscar  at  his   trash can , via webcam , helped by the  Pesties.

His name is a reference to Nikola Tesla, a well known scientist & inventor.

TV / Movies / Specials

 * Sesame Street ( 1969 - present )


 * Episode 4260 ( 2011 )