Yeti Cool Brothers

The Yeti Cool Brothers are associates of Caesar Clown. Their individual names are Rock (ロック) and Scotch (スコッチ).

Appearance
From what is seen in their silhouette, they have long, furry legs and also have fur on their upper body. They wear dark shorts and hats, which are frozen from the top.

They are massive in size, as one of their footprints is larger than Brook, who stands at 266cm (8'8½").

Personality
They are quite merciless, as they quickly eliminated Brownbeard, Zoro, Sanji, and Brook. They are also quite loyal to Caesar Clown, as they follow his orders without question.

Abilities and Powers
They each carry a rifle which seem to be their primary way of fighting. Caesar thought it was a bit much to send them to deal with the Straw Hat Pirates, so their strength is presumably quite high. They are, despite their tremendous stature, fast enough to instantly disappear from Luffy's sight.

Punk Hazard Arc
The two Yeti Cool Brothers were summoned by Caesar Clown to deal with the Straw Hat Pirates, and they were first seen outside one of the abandoned labs that the crew was residing in. They appear to have passed by Zoro's group as Zoro, Sanji, and Brook are unconscious around their giant footprints. Whether or not that is due to a confrontation with them is uncertain. They then inform some troops to pick up the bodies of Brook, Zoro, and Sanji (Nami's body) before heading off to where the kids are. Luffy discovers them and turns back, but the brothers attack Brownbeard and capture Nami (in Franky's body).

Trivia

 * The Yeti, or Abominable Snowman, is a legendary ape-like beast said to inhabit the Himalayan region of Nepal and Tibet.
 * Scotch has the same name as one of Kaido's subordinates.