Nickelodeon Cinematic Universe

SpongeBob SquarePants

 * Tom Kenny as SpongeBob
 * Bill Faggerbakke as Patrick
 * Doug Lawrence as Plankton

Teenage Mutant Ninja Turtles

 * Megan Fox as April O' Neil

My Life As A Teenage Robot

 * Selena Gomez- XJ9/Jenny
 * Helen Mirren - Nora Wakeman
 * Charlize Theron - Vexus

Jimmy Neutron

 * Frank Welker as Goddard
 * Patrick Stewart as Goobot
 * Martin Short as Ooblar
 * Tim Curry as Professor Calamatious

Rocko's Modern Life
Ren and Stimpy Show John kricfaluisi as Ren Hoek/Mr Horse/George Liquor Billy West as Stimpy Mathew Maccauunehey as Powdered Toast man
 * Carlos Alazraqui as Rocko
 * Tom Kenny as Heffer Wolfe
 * Ian McKellen as Peaches

Danny Phantom

 * David Kaufman as Danny Phantom
 * Grey Delisle Griffin as Sam Manson
 * Rickey D'Shon Collins as Tucker Foley
 * Rob Paulsen as Jack Fenton, Box Ghost, and Technus
 * Kath E. Soucie as Maddie Fenton, Lunch Lady Ghost, and Youngblood
 * Colleen O'Shaughnessey as Jazz Fenton
 * Jason Marsden as Dash Baxter
 * Aimee Carrero as Paulina
 * Eric Bauza as Kwan
 * Tara Strong as Star, Ember McLain, and Penelope Spectra
 * Cree Summer Francks as Valerie Gray
 * Kevin Michael Richardson as Skulker
 * Ron Perlman as Mr. Lancer
 * Laraine Newman as Ms. Tetslaff
 * June Angela as Principal Ishiyama and Shelley Makamoto
 * James Arnold Taylor as Walker
 * Peri Gilpin as Desiree
 * William Baldwin as Johnny 13
 * Chynna Phillips as Kitty
 * Mark Hamill as Undergrowth
 * David Boat as Vortex
 * James Garrett as Nocturne
 * Mae Whitman as Julie Fenton (Jazz' older and hotter cousin)

El Tigre

 * Daryl Sabara as El Tigre
 * Demi Lovato as Frida Suarez

Invader Zim

 * Billy Zane as Zim
 * Will Ferrell as GIR

Mina and the Count

 * Joey King as Mina
 * Hugo Weaving as Count
 * Andy Serkis as Igor

The Fairly OddParents

 * Drake Bell as Timmy Turner
 * Daran Norris and Suzanne Blakeslee as Cosmo and Wanda
 * Tara Strong as Poof