Dr. Heinz Doofenshmirtz Phineas and Ferb character First appearance "Rollercoaster '' (2007) Last appearance "O.W.C.A Files '' (2015) Created by Dan Povenmire Jeff "Swampy '' Marsh Voiced by Dan Povenmire Occupation Evil Scientist Family Roger Doofenshmirtz (brother) Spouse (s) Charlene Doofenshmirtz (divorced) Children Vanessa Doofenshmirtz Nationality Drusselsteinian Affiliation LOVEMUFFIN (League of Villainous Evildoers Maniacally United For Frightening Investments in Naughtiness)
who plays dr doofenshmirtz on phineas and ferb
Dan Povenmire Dan Povenmire