Phineas and Ferb
Out of Toon / Hail Doofania
S1 E26:
Out of Toon: Phineas and Ferb decide to create a cartoon where they get to be superheroes. Hail Doofania: When Dr. Doofenshmirtz's brother is elected Governor, he decides he can't live by his brother's rules - so he start's his own country!
Starring
John DiMaggio, Allison Janney