Nickelodeon Cinematic Universe

SpongeBob

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

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
 * Tim Curry as Professor Calamatious

Rocko's Modern Life

 * Carlos Alarquizi as Rocko
 * Tom Kenny as Heffer Wolfe
 * Alan Rickman as Peaches

Danny Phantom

 * Drake Bell as Danny Phantom

El Tigre

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

Invader Zim

 * Billy Zane as Zim
 * Rosearik Rikki Simmons as GIR