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Newton the Gnu
Agent Silent G
Agent Silent G
Gender: Male
Height: As tall as Carl
Hometown: Danville
Nemesis: Dr. Diminutive
Professional Information
  Secret Agent
Friends and Family
Other agents of the O.W.C.A.
Perry the Platypus
Major Monogram
Behind the Scenes
First Appearance:
  "Agent Doof"
Last Appearance:
  "Phineas and Ferb Save Summer"

Newton the Gnu, codenamed Agent Silent G, is an O.W.C.A. agent first appearing in "Agent Doof". He later appeared in Phineas and Ferb Save Summer, and fought the scientists with the other agents. During both fights, he suffered, because one scientist punched him, then threw him down, and another made him crash into a wall.


He broke his leg while in the field with Agent P and temporary ally Dr. Doofenshmirtz as they were escaping his nemesis, Dr. Diminutive.

Background Information

  • Gnu is another name for wildebeest.
  • He is titled Agent Silent G for the silent g in "gnu". Coincidentally, Agent Silent G doesn't seem to make a sound.
  • In Brazil, the g in "gnu" is pronounced so Newton had his name changed to Gnewton.
  • Newton's identity remained secret until Doofenshmirtz put it up on his blog.
  • According to his secret file, he tends to keep to himself. He is known for his full luxurious beard. And he is looking for a new secret identity since it was revealed by Dr. Doofenshirtz.(Where's My Perry?)
  • In "Where's Perry? (Part Two)", another gnu agent is seen.