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Found 6 films with cast matching "Jeff 'Swampy' Marsh"
O.W.C.A. Files
2015
Jeff 'Swampy' Marsh
as Major Monogram / Additional Voices (voice)
Phineas and Ferb: Last Day of Summer
2015
Jeff 'Swampy' Marsh
as Major Monogram (voice)
Phineas and Ferb: Star Wars
2014
Jeff 'Swampy' Marsh
as Major Hologram / Imperial Officer Jeff / Additional Voices
Phineas and Ferb: Night of the Living Pharmacists
2014
Jeff 'Swampy' Marsh
as Major Francis Monogram (voice)
Phineas and Ferb Save Summer
2014
Jeff 'Swampy' Marsh
as Major Francis Monogram / Additional Voices (voice)
Phineas and Ferb Christmas Vacation!
2009
Jeff 'Swampy' Marsh
as Major Monogram (voice)