Weasel

Friend, sidekick, information broker and arms dealer for Deadpool.

Weasel (often simply called Weasel, or just Jack) is a fictional character appearing in American comic books published by Marvel Comics. Weasel is a friend, sidekick, information broker and arms dealer for Deadpool. Weasel is perhaps Deadpool's best friend. However, because of his frequent mood swings and tenuous mental state, Deadpool still often abuses or mistreats him. Weasel has also displayed an opportunistic streak against his friend's interests on occasions. T.J. Miller portrayed the character in the films Deadpool (2016) and Deadpool 2 (2018).

Quick Facts

Publisher

Marvel Comics

Debut

Cable #3 (July 1993)

Creators

Fabian Nicieza; Klaus Janson

Also known as

The Penetrator
Penetraitor
The House
Patient Zero

Supports

Deadpool

Powers

Expert hacker and inventor
Genius-level intellect
Knowledge of weaponry

Lore & Background

Created by writer Fabian Nicieza and artist Klaus Janson, Weasel first appeared in Cable #3 (July 1993). A data and weapon broker with a knack for tech, Weasel serves as Deadpool's go-to informant and arms supplier, though their friendship is rocky—Deadpool often mistreats him, and Weasel has been known to act against Deadpool's interests when it suits him. Taskmaster once abducted Weasel to procure his services, but Weasel chose to return to Deadpool after a show of compassion (and the promise of a new cable connection to the Playboy Channel).

When Weasel made repeated visits to Deadpool's friend/prisoner Blind Al, Deadpool placed them both in the Box, a dark room filled with sharp objects and instruments of torture. Weasel eventually left Deadpool after escaping, hoping to define his life outside their association. Some time later, after Deadpool was killed, resurrected, and left with amnesia, Weasel helped restore his memory, rekindling their friendship before leaving once more. Their association has remained on-again, off-again since.

Reader's Guide

Jack Hammer is an expert hacker and inventor with a genius-level intellect and knowledge of many weapons. An alternate universe version of Weasel appears in Deadpool Max. This version is a pimp, crime boss, and driver. In film, Weasel appears in Deadpool, portrayed by T.J. Miller. This version is the owner/bartender of Sister Margaret's School for Wayward Children whose friendship with Wade Wilson is more mutual. Additionally, Weasel goes on to inspire Wilson's codename after betting against him in the 'dead pool'. Weasel appears in Deadpool 2, portrayed again by T.J. Miller. He assists Wilson in forming X-Force before Cable forces him to sell them out. Weasel appears as a non-playable character in Marvel: Ultimate Alliance, voiced by Cam Clarke.

Did You Know?

In mainstream Marvel Comics canon, Weasel's real name is simply 'Weasel' or sometimes 'Jack'—no surname is given.
Weasel was not a student at Empire State University or a classmate of Peter Parker and Gwen Stacy in the comics; that backstory comes from the Deadpool video game.
The story of Deadpool disguising as Peter Parker and ruining Jack Hammer's job opportunity is from the Deadpool video game, not the comics.
Weasel never became the Las Vegas hero 'The House' in mainstream comics; that is from a non-canon source.