Question: The father of the actress who played Vanessa Doofenshmirtz in "Phineas and Ferb" was an original member of what group?

Context articles: Phineas and Ferb: Ride Again
Are You My Mummy?
Phineas and Ferb (season 3)
Martin Olson
Flop Starz
Olivia Olson
Phineas and Ferb
Phineas and Ferb Christmas Vacation
Phineas and Ferb's Quantum Boogaloo
Dr. Heinz Doofenshmirtz

Phineas and Ferb: Ride Again is a platformer video game based on the television series "Phineas and Ferb", and a sequel of the game "Phineas and Ferb", developed by Altron and published by Disney Interactive Studios.
 It was released in North America on September 14, 2010, and later in PAL regions on April 1, 2011.
 It continues with the two inventor brothers, Phineas and Ferb, making another four big projects, including a rockin' skateboard course and a spaceship.
 Meanwhile, Perry wants to foil Dr. Doofenshmirtz's plans.
"Are You My Mummy?"
 is the twelfth broadcast episode of the animated television series "Phineas and Ferb."
 The episode sees stepbrothers Phineas and Ferb going to an Egyptian-themed theater where they become inspired to befriend a mummy they believe is being kept in the theater basement.
 They confuse the mummy for their sister Candace, who was accidentally wrapped up in toilet paper.
 Meanwhile, Dr. Heinz Doofenshmirtz tries to blow up a beaver dam in order to make his property beachfront.
The third season of "Phineas and Ferb" first aired on Disney Channel on March 4, 2011, and on Disney XD on March 7, 2011.
 The season features two step-brothers on summer vacation trying to make every day the best day ever, while their sister tries to bust them.
 The five main characters are: brothers Phineas Flynn and Ferb Fletcher, secret agent Perry the Platypus (who's also the pet of Phineas and Ferb), the evil scientist Dr. Heinz Doofenshmirtz, and the brothers' older sister Candace Flynn.
Martin Olson is an American comedy writer, television producer, author and composer.
 He is known for his unusual subject matter, and is an original member of the Boston Comedy Scene.
 He is the adoptive father of actress Olivia Olson.
"Flop Starz" is the first segment for the first official aired episode of the animated television series "Phineas and Ferb."
 (After the pilot episode Rollercoaster (Phineas and Ferb)).
 The episode was originally broadcast on Disney Channel on February 1, 2008.
 In the episode, Phineas and Ferb become one-hit wonders in the matter of a morning.
 This is much to the disappointment of Candace, who is trying out for super stardom on a competition show titled "The Next American Pop Teen Idol Star!"
 Meanwhile, Doofenshmirtz converts his building into a giant robot to aid him in his attempt to conquer the tri-state area.
Olivia Rose Olson (born May 21, 1992) is an American actress and singer-songwriter, mostly known for her voice roles as Vanessa Doofenshmirtz in "Phineas and Ferb" and Marceline the Vampire Queen in "Adventure Time".
 She also played the character of Joanna in the 2003 film "Love Actually" and its 2017 short sequel "Red Nose Day Actually".
Phineas and Ferb is an American animated musical comedy television series.
 Originally broadcast as a one-episode preview on August 17, 2007 and again previewed on September 28, 2007, the series officially premiered on February 1, 2008 on Disney Channel, and follows Phineas Flynn and his British stepbrother Ferb Fletcher on summer vacation.
 Every day, the boys embark on some grand new project, which annoys their controlling sister, Candace, who frequently tries to reveal their shenanigans to her and Phineas' mother, Linda Flynn-Fletcher, and less frequently to Ferb's father, Lawrence Fletcher.
 The series follows a standard plot system; running gags occur every episode, and the b-plot almost always features Phineas and Ferb's pet platypus Perry the Platypus working as a spy ("Agent P") for OWCA (the Organization Without a Cool Acronym), to defeat the latest scheme of Dr. Heinz Doofenshmirtz, a mad scientist driven largely by a need to assert his evilness.
 Sometimes, other villains scoff at his level of evil.
 The two plots intersect at the end to erase all traces of the boys' project just before Candace can show it to their mother.
 This usually leaves Candace very frustrated.
"Phineas and Ferb Christmas Vacation" is a special Christmas-themed episode of the animated television series "Phineas and Ferb."
 It was originally broadcast on Disney XD on December 6, 2009, on Disney Channel on December 11, 2009, and on ABC Family on December 18, 2009.
 The special's narrative follows protagonists Phineas and Ferb decorating their city for the arrival of Santa Claus.
 But when the evil mad scientist Dr. Heinz Doofenshmirtz uses a machine to ruin the holiday, Phineas and Ferb must find a way to fix it and save Christmas.
"Phineas and Ferb's Quantum Boogaloo" is the fourteenth episode of the second season of the animated television series "Phineas and Ferb," and the 72nd overall episode of the series.
 It originally aired on Disney XD in the United States on September 21, 2009.
 In the episode, Phineas and his stepbrother Ferb travel into the future and have their time machine stolen by their older sister Candace, now an adult, who travels back in time to get her brothers in trouble during one of their outlandish schemes.
 In doing so, however, she sets off a chain reaction leading to a dystopian future ruled by the evil Dr. Doofenshmirtz.
Dr. Heinz Doofenshmirtz (often called "Doofenshmirtz", or occasionally "Doof") is a fictional character from the American 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.