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Jeff ‘Swampy’ Marsh
Co-creator / Executive Producer
Jeff ‘Swampy’ Marsh is Co-creator and Executive Producer of multi-award winning animated comedy series ‘Phineas and Ferb’. He also writes songs heard in the series and voices the character of Major Monogram. Over the past 20 years, Marsh has worked for many of the top names in animation, including Hanna Barbera and Nickelodeon; and for over six seasons on ‘The Simpsons’. Marsh now lives in California, having returned to the US after six years living and working in the UK.