Follow a Tokyo Ghoul character

Dr. Kanou was a very sociopathic person as well as a "mad scientist". He was to person who was responsible for Ken Kaneki's tranformation into an artificial One-Eyed Ghoul, and is a member of the mysterious underground ghoul organization Aogiri Tree. Working as their personal "mad scientist" he continues to create more artificial One-Eyed Ghoul as well as other devious innovations. One of those innovations was the project codenamed named "Bodyjacker". Bodyjacker was an artificial One-Eyed Ghoul that Kanou created to be the perfect spy and one of the most powerful ghouls due to his special ability to possess ghoul's bodies. Bodyjacker was a human named Jack. Jack was born into Kanou lab and was raised as a lab rat his whole life. Dr. Kanou created from Bodyjacker's kakuhou a device that will grant its user with Bodyjacker's body possession ability. The device was in the form of a Quinque suitcase. The suitcase was black with a purple design border with the word Jack printed on the side of the suitcase. Dr. Kanou being the "mad scientist" he is sent his newest innovation outto be field tested.

"Jacker" Quinque ability:

Dr. Kanou has created a quinque, but this isn't just like any other quinque like the CCG's have been using, but a rather greater class of weapon. Using the RV cells of a ghoul "Bodyjacker" he has created the "Jack" a quinque that gives the user the power of body possession. The user is able to possess anybody human or ghoul. It works by turning into a bowie knife. Upon first look it seems like a any other bowie knife, but the Jack gives the user the ability to teleport anywhere at will and if used to stab somebody will transfer the users mind into the victim's body. The blade will heal the person's body as if it never happened and the users body is ether soul less or on auto pilot.

Which Tokyo Ghoul character would gain the power of body possession?