Jeff 'Swampy' Marsh
- Known for Acting
Acting credits
- 2020 Phineas and Ferb the Movie: Candace Against the Universe as Major Monogram (voice)
- 2014 Phineas and Ferb: Star Wars as Major Hologram / Imperial Officer Jeff / Additional Voices
- 2013 Phineas and Ferb: Mission Marvel as Francis Major Monogram / Gordon Gutsofanemu / Additional Voices
- 2011 Phineas and Ferb the Movie: Across the 2nd Dimension as Major Francis Monogram / Monogram-2 (voice)