Bluebeard

Bluebeard is a minor antagonist in Sinister Squad, played by Trae Ireland. He is a serial killer who only murders women. He is based on the titular character of the French folktale "Bluebeard," about a man who kills his wives.

Biography
Bluebeard is first seen when Alice sends Goldilocks to capture him for his help. She goes disguised as an escort that he requested, assumedly for the purpose of murdering her. He attacks Goldilocks, but she fights back and manages to inflict a poison on him to knock him out. Bluebeard says that no one has ever managed to hit him before, which is perhaps the fuel towards his fixation on Goldilocks for the rest of the film.

Bluebeard does not want to help Alice, and escapes his cell alongside Carabosse. He then attacks Goldilocks until Big Bad Wolf puts him back in his cell. He remains there until Gelda uses her command powers to force him to obey Goldilocks.

Bluebeard goes alongside Goldilocks and Wolf on the mission to fetch Hatter. Later, when Gelda dies, Bluebeard is no longer under the magical influence. He stabs Wolf to make him angry so that he will attack Goldilocks, and then goes to help Carabosse and Death, hoping to get something out of the deal as well. He stabs Piper, forces Alice into a cell, and kills Wolf, but then Goldilocks stabs and kills him.

Abilities
Bluebeard fights with a collection of knives he called his "wives." Every time he kills someone with one of his knives, it absorbs their life force and makes him stronger. He is also seen capable of summoning them into his hands.