The fourth person mentioned in the abuse inquiry is believed to be a soap actor, although it's unclear they are a current or former star.
The team behind the ITV Exposure documentary that made the Savile allegations have been given the name of a fifth person, also thought to be a TV personality, amid ongoing claims of abuse.
The team behind the documentary that revealed claims of sexual abuse against Jimmy Savile have passed on details of alleged abuse by another celebrity to the Metropolitan Police.
The claims were made by a caller to the ITV Exposure team following the Savile documentary but are not thought to be linked to the Savile allegations.
The allegations are thought be related to a TV personality who is alive.