Dr. Heinz Doofenshmirtz

Dr. Heinz Doofenshmirtz
Phineas and Ferb character
Dr. Heinz Doofenshmirtz
First appearance	"Rollercoaster" (2007)
Last appearance	"The O.W.C.A. Files" (2015)
Created by	Dan Povenmire Jeff "Swampy" Marsh
Voiced by	Dan Povenmire
Occupation	bratwurst salesman; Evil Scientist
Family	Roger Doofenshmirtz (brother)
Spouse(s)	Charlene Doofenshmirtz (divorced)
Children	Vanessa Doofenshmirtz
Nationality	Drusselstein
Affiliation	LOVEMUFFIN (League of Villainous Evildoers Maniacally United for Frightening Investments in Naughtiness)

Dr. Heinz Doofenshmirtz (often called "Doofenshmirtz", or occasionally "Doof") is a fictional character and the main antagonist (of Agent P, aka Perry the Platypus) from the animated television show Phineas and Ferb. He was created by Dan Povenmire and Jeff "Swampy" Marsh, and is voiced by Povenmire. The character first appeared in the pilot episode of the series and appears in the majority of episodes. He is described as an incompetent and forgetful evil scientist intent on conquering the "entire tri-state area" by creating obscure but nefarious inventions. Dr. Doofenshmirtz speaks with a caricature of a German accent and is from the fictional European country Drusselstein.

Doofenshmirtz appears in several merchandise pieces, including the book series and the video game.

Doofenshmirtz is portrayed as a bumbling, dimwitted evil genius. He strives to take over the "entire tri-state area" by using peculiar contraptions made up of "strange items [he] purchases off the internet". His nemesis is Perry the Platypus, a skilled anthropomorphic platypus secret agent who disguises himself as the mindless pet of the series' title characters.

A typical episode features Doofenshmirtz hatching an evil scheme or invention that he often links to a "back story" from his youth. The stories explore his mentally abusive childhood in the fictional village of Gimmelshtump, Drusselstein, where his brother, Roger, is favored over him. Doofenshmirtz usually has long monologues and displays acts of "cartoonish" physical violence towards Perry the Platypus. Often times, his inventions get off one shot before being destroyed. This shot usually serves to get rid of Phineas and Ferb's inventions, preventing their sister, Candace from 'busting' them, i.e. showing their creations to their mother. According to his own life story he was a bratwurst salesman until he was ruined by the Hot dog industry; only then did he become an evil scientist.