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Illustration Dr. Heinz Doofenshmirtz Phineas & Ferb Dr Doofenshmirtz Mammal, ate, child, mammal png | PNGEgg
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Dr. Heinz Doofenshmirtz & Balloony. Best friends forever. [OC]. Full credits to u/ Ghost_Animator | Phineas and ferb, Best friends forever, Heinz
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Phineas and Ferb" This Is Your Backstory (TV Episode 2012) - Dan Povenmire as Dr. Heinz Doofenshmirtz - IMDb
![677680 - safe, artist:leibi97, pinkie pie, earth pony, human, pony, balloon, crossover, duo, filly, heinz doofenshmirtz, helping, lawn gnome, mouth hold, phineas and ferb, smiling, toddler, younger - Derpibooru 677680 - safe, artist:leibi97, pinkie pie, earth pony, human, pony, balloon, crossover, duo, filly, heinz doofenshmirtz, helping, lawn gnome, mouth hold, phineas and ferb, smiling, toddler, younger - Derpibooru](https://derpicdn.net/img/2014/7/18/677680/full.png)