A tiny pink land shark with a single tooth has captured the hearts of Marvel fans worldwide — but Jeff started as a background joke on a variant cover. Jeff the Land Shark first appeared in West Coast Avengers #1 (2018) as part of a land shark army created by MODOK, according to Marvel Comics (official publisher). Here’s his story from variant cover gag to fan-favorite character with his own comic series.

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First Appearance: 2018, West Coast Avengers (vol. 3) #1 ·
Creators: Kelly Thompson, Daniele di Nicuolo (real-world); MODOK (in-universe) ·
Species: Land Shark (artificial) ·
Notable Owners: Gwenpool, Kate Bishop ·
Signature Sound: “Mrr”

Quick snapshot

1Confirmed facts
  • Created by MODOK as part of a land shark army (Marvel Comics)
  • Adopted by Gwenpool after the West Coast Avengers defeated the army (Wikipedia)
  • Featured in the ongoing It’s Jeff! Infinity Comic series (ComicBook.com)
2What’s unclear
  • Whether Jeff will appear in the MCU (ScreenRant)
  • Exact upper limit of his size/shape-shifting abilities (CBR)
  • Official hero/anti-hero designation by Marvel (GamesRadar)
3Timeline signal
  • 2016 – Variant cover of The Unbelievable Gwenpool #1 (ComicBook.com)
  • 2018 – Full debut in West Coast Avengers #1 (ComicBook.com)
  • 2024 – Playable character in Marvel Rivals (ComicBook.com)
4What’s next
  • Ongoing fan campaigns for MCU appearance (GamesRadar)
  • New issues of It’s Jeff! Infinity Comic (Marvel Comics)
  • Possible tie-in to Deadpool 4 or She-Hulk season 2 (GamesRadar)

Six key facts about Jeff, based on official Marvel sources and fan wikis.

Attribute Details
Real Name Jeffrey (Land Shark)
Species Land Shark
Creator MODOK (in-universe); Chris Hastings & Gurihiru (real-world)
First Full Comic Story West Coast Avengers (2018) #1
Voice Actor (Marvel Rivals) Not yet announced
Fan Nickname Best boy of Marvel

What is the story behind Jeff the Land Shark?

Origin as a variant cover joke

  • Jeff first appeared in a variant cover for The Unbelievable Gwenpool #1 (2016), drawn by Gurihiru. Writers Kelly Thompson and Daniele di Nicuolo later expanded the idea into a full character (Wikipedia).
  • Thompson has said the landshark designs were originally a one-off gag in West Coast Avengers #1, but the fan response pushed them to develop Jeff further (Comic Book Treasury).

The implication: Jeff’s journey from background art to starring character shows how modern Marvel listens to audience engagement.

In-universe birth from MODOK’s experiment

  • In the comics, MODOK (or B.R.O.D.O.K.) created an army of genetically engineered land sharks to attack Los Angeles. Jeff was among them (Marvel Comics (official publisher)).
  • After the West Coast Avengers defeated the army, the sole surviving baby land shark was left behind. Gwenpool took him in as a pet (CBR).

The pattern: Jeff represents a rare case of a villain’s weapon turned loyal companion.

Adoption by Gwenpool and later Kate Bishop

  • Gwenpool named him Jeffrey and brought him into the West Coast Avengers team. After Gwenpool’s departure, Kate Bishop (Hawkeye) became his primary caretaker (Wikipedia).
  • Jeff has also been briefly cared for by Deadpool and Elsa Bloodstone in various stories (GamesRadar).
The upshot

Jeff’s adoption arc—from weapon to family pet—is the core reason readers connect with him. He’s a living example of the “enemy becomes friend” trope executed with genuine charm.

Is Jeff the Land Shark a Deadpool character?

Shared universe but distinct origin

  • Jeff is primarily associated with Gwenpool, not Deadpool. Their connection is often confused because both characters break the fourth wall and use meta-humor (Wikipedia).
  • Deadpool has appeared alongside Jeff in some Infinity Comic issues, but Jeff’s creation and core stories are tied to Gwenpool and the West Coast Avengers (Marvel Comics).

Gwenpool connection vs. Deadpool

  • Gwenpool (Gwen Poole) is a character from the real world who entered the Marvel Universe, making her a distinct entity from Deadpool (Wikipedia).
  • Jeff’s personality—mischievous but not murderous—matches Gwenpool’s more lighthearted tone, not Deadpool’s violence (GamesRadar).

Why this matters: conflating Jeff with Deadpool ignores the character’s unique identity. His real family is the West Coast Avengers, not the Merc with a Mouth.

Is Jeff the shark good or evil?

Mischievous but heroic alignment

  • Jeff is widely described as a “good” character with a playful, cat-like demeanor. He has never been portrayed as a villain in any major storyline (GamesRadar).
  • His mischief includes eating everything in sight—including a few villain’s cars—but always in service of helping his friends (CBR).

Examples of heroic acts

  • In West Coast Avengers, Jeff helped defeat the Masters of Evil West Coast by distracting them with his cuteness (Wikipedia).
  • In It’s Jeff! Infinity Comic, he saves a kitten from a tree (and eats the tree) (Marvel Comics).

The trade-off: Jeff’s heroic actions are often accidental, but the intent is always pure. He’s chaotic good, not neutral.

Is Jeff the Land Shark coming to the MCU?

Current status and speculation

  • As of 2025, Marvel Studios has not confirmed any MCU appearance for Jeff (ScreenRant).
  • Fans speculate due to Deadpool’s growing role in the MCU and the success of Marvel Rivals, where Jeff is a playable character (GamesRadar).

Possible entry points

  • A cameo in Deadpool 4 or She-Hulk: Attorney at Law season 2 could work, as both shows embrace meta-humor (CBR).
  • Secret Wars (2026) might include Jeff as a background character given the multiverse scope (ComicBook.com).

What to watch: The Marvel Rivals popularity gives Jeff a stronger case for a live-action or animated appearance, but no official announcements exist.

What happened to Jeff the shark?

Survival and ongoing adventures

  • Jeff is alive and well in current Marvel comics. He continues to appear in It’s Jeff! Infinity Comic, which has been running since 2020 (Marvel Comics).
  • No major injury or death has occurred in any published story (Wikipedia).

Current comic status

  • As of early 2025, Jeff is a regular character in the West Coast Avengers backup stories and the Infinity Comic series (ComicBook.com).
  • He also appears in Marvel Rivals as a playable hero, increasing his visibility to a mainstream gaming audience (GamesRadar).
What to watch

Jeff’s continued presence in digital-first comics and a major video game suggests Marvel is testing his long-term viability. If merchandise sales and streaming numbers hold, a wider push is likely.

Timeline

  • 2016 – First appearance on variant cover of The Unbelievable Gwenpool #1 (Wikipedia).
  • 2018 – Full debut in West Coast Avengers #1 as Gwenpool’s pet (Wikipedia).
  • 2020 – Featured in It’s Jeff! Infinity Comic on Marvel Unlimited (Marvel Comics).
  • 2024 – Added as a playable character in Marvel Rivals video game (ComicBook.com).
  • 2025 – Ongoing fan campaigns for MCU appearance (GamesRadar).

Confirmed facts vs. What’s unclear

Confirmed facts

  • Jeff was created by MODOK as part of a land shark army (Marvel Comics).
  • He is adopted by Gwenpool and later Kate Bishop (Wikipedia).
  • He appears in Marvel Rivals as a playable character (ComicBook.com).
  • His signature sound is “Mrr” (Marvel Comics).

What’s unclear

  • Whether Jeff will appear in the MCU (reportedly under discussion, per ScreenRant).
  • Exact extent of his powers (e.g., can he grow larger?) (CBR).
  • Official hero/anti-hero designation by Marvel (GamesRadar).
  • Whether he can communicate beyond “Mrr” (Wikipedia).

Quotes

Marvel’s most adorable super hero yet

— Marvel Comics (official site)

Jeff is the pet landshark of the superheroes Gwen Poole and Kate Bishop

— Wikipedia

Jeff was among the Land Sharks created by MODOK and adopted by Gwenpool

— CBR (Marvel fan resource)

The pattern across these descriptions: everyone agrees Jeff is a former weapon turned beloved pet. The charm lies in the contradiction—a shark that acts like a puppy.

Related reading: **A Knight of the Seven Kingdoms Cast Guide** · **Best Shows on Netflix: Top 10 by IMDb & Rotten Tomatoes**

Additional sources

youtube.com, marvel.fandom.com, youtube.com, youtube.com, gatecrashers.fan

For a deeper dive into Jeff the Land Sharks origin and powers, check out this comprehensive guide that also covers his role in Marvel Rivals.

FAQ

What is Jeff the Land Shark’s real name?

His full name is Jeffrey, often shortened to Jeff. Some sources refer to him as “Jeffrey (Land Shark)” (Wikipedia).

Who owns Jeff the Land Shark?

Originally adopted by Gwenpool, Jeff is now primarily cared for by Kate Bishop (Hawkeye) in the West Coast Avengers (Wikipedia).

Does Jeff the Land Shark have any special abilities?

He has enhanced strength, a powerful bite, can breathe underwater and on land, and is small enough for stealth. His exact size limit is unknown (CBR).

Is Jeff the Land Shark in any video games?

Yes, he is a playable character in Marvel Rivals (2024). He has not appeared in other major Marvel games (GamesRadar).

How can I start reading Jeff the Land Shark comics?

Begin with West Coast Avengers (2018) #1-10, then the It’s Jeff! Infinity Comic on Marvel Unlimited (Marvel Comics).

Why is Jeff the Land Shark so popular?

His cute design, cat-like personality, and contrast to typical Marvel heroes resonate with fans. The Marvel Rivals appearance boosted his mainstream visibility (GamesRadar).