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Jeff the Land Shark

Jeff the Land Shark is a fictional Marvel Comics character, a small land-dwelling shark created by M.O.D.O.K.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 27, 2026|2 min read| Fact-checked

Jeff the Land Shark is a fictional Marvel Comics character and a genetically created land shark. He first appeared in *West Coast Avengers* vol. 3 #6 in 2018 and was formally introduced in issue #7 in 2019. Created by writer Kelly Thompson and artist Daniele di Nicuolo, Jeff was created by M.O.D.O.K. and later adopted by Gwen Poole.

Publication history

Jeff the Land Shark debuted in *West Coast Avengers* vol. 3 #6 in October 2018 and was formally named in issue #7 in January 2019. The character was created by Kelly Thompson and Daniele di Nicuolo.

Fictional character biography

In Marvel continuity, Jeff was one of several land sharks created by M.O.D.O.K. He was later rescued and adopted by Gwen Poole, becoming closely associated with the West Coast Avengers.

Character traits

Jeff is depicted as a shark with legs, allowing him to move on land as well as swim. Marvel materials also describe him as a helpful companion who assists heroes.

Reception and later appearances

Jeff became a fan-favourite Marvel character and has appeared beyond the original comics in later Marvel projects, including video games and spin-off material.

Key facts

  • Jeff the Land Shark is a Marvel Comics character and a genetically created land shark.
  • The character first appeared unnamed in *West Coast Avengers* vol. 3 #6 before being named Jeff in issue #7.
  • Jeff was created by writer Kelly Thompson and artist Daniele di Nicuolo.
  • He is associated most closely with Gwen Poole and Kate Bishop.
  • Marvel describes Jeff as able to swim in water and walk on land.

Frequently asked questions

Who created Jeff the Land Shark?
Jeff the Land Shark was created by writer Kelly Thompson and artist Daniele di Nicuolo.
When did Jeff the Land Shark first appear?
Jeff first appeared in *West Coast Avengers* vol. 3 #6 in October 2018, and was formally introduced by name in issue #7 in January 2019.
Who is Jeff the Land Shark's owner or guardian?
Jeff is most closely associated with Gwen Poole, who adopts him and cares for him alongside other Marvel characters.
Was Jeff the Land Shark created by M.O.D.O.K.?
Yes. In Marvel continuity, Jeff is one of the land sharks created by M.O.D.O.K.
What powers or abilities does Jeff have?
Jeff is described as a shark that can walk on land and swim in water.

References

  1. Wikipedia — https://en.wikipedia.org/wiki/Jeff_the_Land_Shark
    Supports: First appearance, creators, character associations, and basic biography.
  2. Marvel — https://www.marvel.com/characters/jeff-the-land-shark
    Supports: Official character description, abilities, and role within Marvel continuity.
  3. Marvel — https://www.marvel.com/comics/guides/2449/jeff-the-land-shark
    Supports: Origin as a land shark created by M.O.D.O.K. and adoption by Gwenpool.
  4. Marvel — https://www.marvel.com/articles/comics/an-ode-to-our-beautiful-son-jeff-the-land-shark
    Supports: Marvel's characterization of Jeff and his association with the West Coast Avengers.