Jekyll Doofenshmirtz
[[File:200px-Jekyll Doofenshmirtz|200px]]
Jekyll working in his invention
Gender: Male
Age: Unknown (deceased)
Height: Unknown. Perhaps 6.2 ft (same as Heinz Doofenshmirtz)
Nationality: Druelselsteinian
Hometown: Gimelschtump, Druelselstein
Nemesis: Platypus Monster, Mob
Professional Information
  Mad Scientist
Friends and Family
gretel doofenshmirtz
Heinz Doofenshmirtz
Roger Doofenshmirtz
Mr and Mrs. doofenshmirtz
Behind the Scenes
First Appearance:
  Phineas and Ferb episode "The Monster of Phineas-n-Ferbenstein"
Voiced by:
Dan Povenmire (USA)

Jekyll Doofenshmirtz is Heinz & Maxwell Doofenshmirtz's great great grandfather who created a machine to turn someone into either a fairy princess or monster.When he finaly got the angry mob to his house he drank the concoction he tuned into a fairy princess.He upsets the platypus monster, and goes to fight him but accidently turns himself into a fairy princess.He then isseen in the shot of him being eaten by the Platypus Monster(The Monster of Phineas-n-Ferbenstein)


Jekyll Doofenshmirtz's place

His first name and title as Docter is an obvious parody of Dr. Jekyll.

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