Tony Blackburn has released a statement blasting former colleague Jimmy Savile, in light of accusations of sexual abuse made against the late presenter.
The DJ calls Savile "vile" and "despicable", adding that he was "disgusted beyond words" with the allegations.
The Metropolitan police is co-ordinating a nationwide investigation, and has said that more than 60 victims could have been affected by Savile in incidents that date back to 1959.
He is accused of molesting youngsters, including hospital patients, residents of a children's home, and pupils at an approved school. The media storm has kicked off since a documentary put together for ITV was aired last month.
Blackburn said: "He was not a nice man, despite how the public viewed him at the peak of his success."
"There were always rumours circulating about him, the problem at the time was that rumour was always hard to translate in to fact.
"Jimmy Savile was a master manipulator of the press and would do what he could to keep his image held high in the public conscience. It will be to the eternal regret of me and, I'm sure, so many of my BBC colleagues that he was allowed to get away with these monstrous acts."
He vowed: "All of us who worked at the BBC during the time of these heinous crimes owe it to the victims to speak to the police and the BBC Investigations Unit and help them in any way we can."
Savile died in October 2011.