<Table> <Tr> <Th_colspan="2"> Dr. Heinz Doofenshmirtz </Th> </Tr> <Tr> <Td_colspan="2"> Phineas and Ferb character </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> First appearance </Th> <Td> "Rollercoaster" (2007) </Td> </Tr> <Tr> <Th> Last appearance </Th> <Td> "O.W.C.A Files" (2015) </Td> </Tr> <Tr> <Th> Created by </Th> <Td> Dan Povenmire Jeff "Swampy" Marsh </Td> </Tr> <Tr> <Th> Voiced by </Th> <Td> Dan Povenmire </Td> </Tr> <Tr> <Th> Occupation </Th> <Td> Evil Scientist </Td> </Tr> <Tr> <Th> Family </Th> <Td> Roger Doofenshmirtz (brother) </Td> </Tr> <Tr> <Th> Spouse (s) </Th> <Td> Charlene Doofenshmirtz (divorced) </Td> </Tr> <Tr> <Th> Children </Th> <Td> Vanessa Doofenshmirtz </Td> </Tr> <Tr> <Th> Nationality </Th> <Td> Drusselsteinian </Td> </Tr> <Tr> <Th> Affiliation </Th> <Td> LOVEMUFFIN (League of Villainous Evildoers Maniacally United For Frightening Investments in Naughtiness) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Dr. Heinz Doofenshmirtz </Th> </Tr>

Who plays dr doofenshmirtz on phineas and ferb