This article or section contains lore taken from Warcraft novels or short stories.

Krol was the leader of the ogres initially approached by the Blackrock clan of the Horde who were seeking to form an alliance. The Blackrocks captured three members of Krol's clan and convinced them to hold council with their leader. Krol, promised protection from the gronn, as well as a new "enemy" called the draenei in which to kill, quickly agreed and formed an alliance with Blackhand.^{RotH 264}

After the destruction of Draenor, the Boulderfists settled in Nagrand. Recently, Krol has gone mysteriously missing and a new clan, the Warmaul, have begun forcing his clan out of their lands. The cunning half-orc Lantresor of the Blade has stepped up and taken leadership of the clan. The Krol Blade may or may not be named after him.

Preceded by: Unknown

Position: Leader of the Boulderfist Clan

Succeeded by: Lantresor of the Blade