Howleen Wolf is a Monster High character and Monster High doll. Howleen is Clawd & Clawdeen Wolf's younger sister who is 14 years of age.
Howleen Wolf has short hair and one down turned ear. She first appeared in the Monster High episode Fright On when two segregated monster schools, the vampires and werewolves, joined Monster High. The two groups are legendary enemies and Howleen became the leader of the Wolf Pride group.
Howleen has shown to be easily manipulated because she is still finding out who she is apart from her family. She has been accused of stealing (borrowing without permission) her sister Clawdeen's wardrobe.
Clawd notes in his journal that the two have a history of fighting and it is suggested in the episode Fright On that Clawd has tried to break up their fights which only resulted in him being bitten.