The Official Info About Nicktoons: Smash!

Characters:

Spongebob Squarepants:

-Spongebob Squarepants
-Patrick Star
-Sandy Cheeks
-Plankton

The Fairly OddParents:
-Timmy Turner
-Crocker
-Vicky

The Adventures of Jimmy Neutron Boy Genius:
-Jimmy Neutron
-Sheen Estevez
-Cindy Vortex

Danny Phantom:
-Danny Phantom
-Vlad
-Sam

Fanboy and ChumChum:
-Fanboy and ChumChum
-Kyle

T.U.F.F. Puppy:
-Dudley Puppy
-Kitty Katswell

The Mighty B:
-Bessie

Back at the Barnyard:
-Otis

Hey Arnold:
-Arnold
-Gerald
-Helga

Invader Zim:
-Zim
-GIR
-Dib

Robot and Monster:
-Robot and Monster

Avatar: The Last Airbender/The Legend Of Korra
-Aang
-Zuko
-Toph
-Korra

El Tigre: The Adventures of Manny Rivera:
-El Tigre
-Frida

Chalkzone:
-Rudy Tabootie
-Snap

The Angry Beavers:
-Daggett
-Norbert

Ren and Stimpy:
-Ren
-Stimpy

The Wild Thornberrys:
-Eliza Thornberry
-Donnie

My Life As A Teenage Robot:
-XJ9

Rugrats:
-Tommy Pickles

Doug:
-Doug

Ahh! Real Monsters!:
-Ickis, Oblina, and Krumm

Rocko's Modern Life:
-Rocko

Catdog:
-Catdog

This totals the characters of 46.