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This article is about Thaddeus' brother. You may be looking for the Marvel Comics character.
Gender: Male
Age: Possibly the same age as Ferb
Hometown: Danville
Nemesis: Phineas Flynn
Ferb Fletcher
Professional Information
Friends and Family
Thaddeus (brother)
Mandy (older sister)
Mrs. Weaver
Behind the Scenes
First Appearance:
  "Thaddeus and Thor"
Last Appearance:
  "Great Balls Of Water"
Voiced by:

Thor is the nephew of Mrs. Weaver, the next-door neighbor of the Flynn-Fletcher family.


Thaddeus, Thor and their older sister Mandy visit their aunt for the weekend. Both Mandy and Candace argue over whose brothers are more annoying and competent. Phineas and Ferb, at Candace's request, agree to compete with Thaddeus and Thor to see who can build the best backyard fort. Thaddeus and Thor build a castle-like fort complete with a slide and a licorice dispenser, which becomes insignificant when compared to Phineas and Ferb's 20-story fort with a swimming pool and a bowling alley ("Thaddeus and Thor").


Not much is revealed about Thor's personality, as he is extremely laconic (like Ferb). Unlike Phineas, who treats his brother as an equal, a partner in his projects, the arrogant Thaddeus treats Thor like his sidekick/lackey. When Thaddeus snaps his fingers and orders "Gum me!", Thor hands him a piece of bubblegum. When Phineas tries doing the same to Ferb, he sarcastically replies, "Please."

Physical Appearance

Thor bears an uncanny resemblance to Ferb, except that he is bulkier than Ferb, and has yellowish-brown hair. His style of clothing resembles that of Phineas (T-shirt and low pants), while his brother Thaddeus wears high pants like Ferb. Thor is slightly overweight, unlike Ferb.

Background Information

  • He seems to resemble Brian Griffin from Family Guy and Yoshi from Super Mario.
  • Like his brother:
    • He bears a resemblance to one of the brothers, but has the style of clothing to the other.
    • He is named after a great deity (Thor, the god of lightning in Norse mythology).


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