TELEVISION SHOW CHARACTERS AND THEIR BEST COSTUMES

These are some I could come up with
  1. Howard and Bernadette - Papa Smurf and Smurfette
    The Big Bang Theory
  2. Sheldon and Amy - a compromise
    The Big Bang Theory
  3. Chandler - "the pink bunny costume his wife made him wear"
    Friends
  4. Ross - Sputnik
    Friends
  5. Peyton Sawyer - The Angel of Death
    One Tree Hill
  6. Rory Gilmore - Gogo
    Gilmore Girls
  7. Leslie Knope - Rosie the Riveter
    Parks and Recreation
  8. April Ludgate - a Sumo Wrestler after he lost all the weight
    Parks and Recreation
  9. Jim Halpert - "the popular networking site known as Bookface"
    The Office
  10. Shirley - Jules Winnfield (Samuel L. Jackson in Pulp Fiction) - Community
    Suggested by   @igrec_O
  11. "The Office" - The Joker by Creed, Kevin, and Dwight
    Suggested by   @csmcgrew
  12. How I Met Your Mother
    Ted Mosby goes as a 'hanging chad' ballot. Hoping to run into the Slutty Pumpkin he met the previous Halloween but ends up meeting Katie Holmes instead 🎃
    Suggested by   @angela3950