Suggestions by @themegacaster

Flapjack

as Cartoon Network in Warner Bros. Universe

Agent Smith

as The Matrix in Warner Bros. Universe

Thomas A. Anderson (Neo)

as The Matrix in Warner Bros. Universe

Yumi (Hi Hi Puffy AmiYumi)

as Cartoon Network in Warner Bros. Universe

Ami (Hi Hi Puffy AmiYumi)

as Cartoon Network in Warner Bros. Universe

Dot Warner

as Amblin Television in Warner Bros. Universe

Wakko Warner

as Amblin Television in Warner Bros. Universe

Yakko Warner

as Amblin Television in Warner Bros. Universe

Troy Baker

as Batman in Warner Bros. Universe

Diedrich Bader

as Batman in Warner Bros. Universe

Fred Flintstone

as Hanna-Barbera in Warner Bros. Universe

Billy and Mandy

as Cartoon Network in Warner Bros. Universe

The Invader

as Looney Tunes in Warner Bros. Universe

Supergirl (Kara Zor-El)

as DC in Warner Bros. Universe

Lobo (DC)

as DC in Warner Bros. Universe

Garret Garrison

as Minecraft in Warner Bros. Universe

Steve (Minecraft)

as Minecraft in Warner Bros. Universe

Dexter

as Cartoon Network in Warner Bros. Universe

Speedy Gonzales

as Looney Tunes in Warner Bros. Universe

Tasmanian Devil

as Looney Tunes in Warner Bros. Universe