Jeff 'Swampy' Marsh
December 9, 1960 · 65 years old
Jeff "Swampy" Marsh (born December 9, 1960) is an American animator, writer, director, producer, and voice actor associated with several animated television series, most notably as an executive producer and the voice of Major Monogram for Disney's animated series Phineas and Ferb and Milo Murphy's L…
Known For
4 titles
Phineas and Ferb
Phineas and Ferb invent, scheme, and stay one step ahead of their bratty sister. Meanwhile, their pet platypus plots against evil Dr. Doofenshmirtz.
Phineas and Ferb the Movie: Across the 2nd Dimension
Phineas and Ferb discover that Perry is a secret agent, and they all get stuck in an alternate dimension where Doofenschmirtz is the ruler of the tri-state area.
Phineas and Ferb the Movie: Candace Against the Universe
The famed stepbrother inventors know what they're gonna do today. They're gonna rescue their sister from an alien abduction.
Milo Murphy's Law
An animated comedy adventure series that follows 13-year-old Milo Murphy, the fictional great-great-great-great grandson of the Murphy's Law namesake. Additionally, Dakota and Cavendish come from the future to prevent pistachio ex...