Nicktoons/Veggietales

Danny Phantom as Bob the Tomato

Spongebob Squarepants as Larry the Cucumber(their personalities are similar)

Timmy Turner as Junior Asparagus

Tootie as Laura Carrot

Squidward Tentacles as Archibald Asparagus

Ren & Stimpy as Philippe & Jean-Claude

The Quickster (Spongebob's alter-ego in Mermaidman & Barnacle Boy 4) as LarryBoy

The Warner Siblings as the Scallions (Animaniacs was a Nicktoon back in 2002)

More ideas?