User blog comment:PlantyThePottedPlant/Random Topic Blogging III: Blog Harder/@comment-1518158-20141011201923/@comment-24887354-20141012120026

I'm pretty sure that South Park will make fun of the episode by showing a "South Park-ized" version of Phineas & Ferb, with the art style of Phineas & Ferb, but the presentation of South Park, by showing it on the Disney channel in one of the future episodes, kinda like Cartoon Wars parts 1 & 2 where they did it with Family Guy. Here are my predictions for character voices:

Phineas - Trey Parker

Ferb - Matt Stone

Candace - Mona Marshall

Linda - April Stewart

Isabella - Trey Parker (For laughing purposes)

Baljeet - Matt Stone

Buford - Trey Parker

Doofenshmirtz - Trey Parker