Jeff 'Swampy' Marsh Movies, TV Shows, and online popularity.

Phineas and Ferb is an American animated musical-comedy television series that centers around two inventive stepbrothers on their summer vacation. Each episode showcases the siblings concocting elaborate projects and adventures, much to the dismay of their sister, Candace. The show includes a parallel subplot featuring their pet platypus, Perry, who leads a double life as a secret agent battling the bumbling Dr. Doofenshmirtz.

Phineas and Ferb the Movie: Across the 2nd Dimension is a 2011 American animated science fantasy action-adventure comedy-drama television film based on the American animated TV series Phineas and Ferb. The film follows the adventures of Phineas and Ferb as they find themselves in an alternate dimension ruled by the evil Doofenshmirtz and must rely on their pet platypus Perry, who is revealed to be a secret agent, to help them find a way back home.