Phineas and Ferb - Season 1 Episode 40 : The Monster of Phineas-n-Ferbenstein
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The boys learn about one of Ferb's Victorian ancestors, who helped a scientist create a monster. Meanwhile, Doofenshmirtz recalls the story of his great-great-grandfather Dr. Jekyll Doofenshmirtz.
Released: 2007-08-17
Runtime: 00:26:14 minutes
Genre: Animation, Comedy, Family, Sci-Fi & Fantasy
Network: Disney XD, Disney Channel
Stars: Vincent Martella, Ashley French, Alyson Stoner, David Errigo Jr., Maulik Pancholy, Bobby Gaylor, Dan Povenmire, Jeff 'Swampy' Marsh, Caroline Rhea, Dee Bradley Baker