The top left image still hasn't been guessed in two weeks! It's now worth three points! I'm giving you another week to figure it out along with these new additions.
Congratulations to coolb who correctly identified these first two characters as being Nina Harper from Braceface and Dum Dum from The Peril of Penelope Pitstop. And congratulations to newcomer Peter who correctly identified the third character as Captain Majors from The Godzilla Power Hour!