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Dr. Heinz Doofenshmirtz, (Dr. D, Dr. Doofenshmirtz, Doofenshmirtz, or Doof for short), is a 47...
Heinz Doofenshmirtz is the ruler of the 2nd Dimension's Tri-State Area and the said dimension's...
Phineas and Ferb discover that their beloved pet platypus, Perry, is really a secret agent who...