W is for Weasel

The comic version of Weasel is John "Jack" Monroe. He was a student at Stanford and later taught at Vandemeer University. While at Stanford he was a classmate of Martin Stein (one half of Firestorm), though Stein didn't remember him. He wasn't a metahuman, but rather a serial killer in a weasel fursuit. This version was killed by Rick Flag using the Thinker's Cap.

I know the character more from The Suicide Squad. He is portrayed by James Gunn's younger brother, Sean Gunn. He isn't intelligent (he's licking the window when introduced). In fact most of the info we get for him is the following line from Flag (which cracked me up, btw), "Hey, hey! He's not a werewolf, he's a weasel! He's harmless! I mean, he's not harmless, he's killed 27 children, but, you know..." Though he appears to drown, we later see that he survived. Weasel (voiced by Gunn) will appear in the animated Creature Commando's project coming out. Gunn has stated we will learn more about the character in a Polygon interview.

I'm going to stat the film version, because it's my favorite.

Code Name: Weasel

Real Name: Unknown

Team Affiliations: Task Force X

Medium Humanoid, Neutral Evil 

Armor Class: 12 (Dex)

Hit Points: 32 (5d8+10)

Speed: 30 ft.

Challenge: 1 (200 XP)

Str 16 (+3) Dex 14 (+2) Con 14 (+2) Int 6 (-2) Wis 10 (+0) Cha 7 (-2)

Saving Throws: Dex +4

Skills: Perception +2, Survival +2

Senses: Darkvision 60 ft., passive Perception 12

Languages: Understands but can't speak English

Trait

Did Anyone Check on Whether Weasel Could Swim?: Weasel, in fact, cannot swim. He has disadvantage on all Strength (Athletics) checks related to swimming.

Enhanced Hearing and Smell: Weasel has advantage on Wisdom (Perception and Survival) checks that rely on hearing and smell.

Rampage: When Weasel reduces a creature to 0 hit points with a melee attack on his turn, he can take a bonus action move up to half his speed and make a bite attack.

Weasel Lungs: Weasel has a a different respiratory system than humans and is able to continue breathing even after swallowing large amounts of water and appearing passed out. Intelligence (Medicine) checks to get his vitals during times like this are done with Disadvantage.

Actions

Multiattack: Weasel makes two claw and one bite attack.

Claw: Melee Weapon Attack. +5  to hit, reach 5 ft., one target. Hit: 6 (1d6+3) slashing damage. 

Bite: Melee Weapon Attack. +5  to hit, reach 5 ft., one target. Hit: 4 (1d4+3) piercing damage.