Four women accusing Russell Brand of sexual assault may be 'just tip of the iceberg'

But former colleagues have laid bare his alleged predatory behaviour while working at Channel Four, the BBC and in Hollywood, with Brand’s attitude towards women an “open secret in radio and TV production”.

The Express understands a number of high profile women who have also been involved with the star are considering speaking out – with the comedy circuit awash with rumours of his behaviour.

Brand has denied the allegations, labelling them as 'vicious attacks' (Image: Getty)One senior TV insider told the Express: “There have been so many rumours about this man’s behaviour and attitude towards women that it felt inevitable the lid would be lifted at some stage.

Yesterday the Met Police confirmed it is “aware” of the accusations and has encouraged any alleged victims to speak out as advisors, charities and associates began to abandon the star en-masse.

Foreign Secretary James Cleverly suggested there are now wider questions for the industry (Image: Gettty)Brand, who had a brief high-profile marriage to American pop star Katy Perry, has boasted of his many relationships, including having sex with five different women-a-day.

Just hours after the allegations emerged, Brand went ahead with a stand-up show in Wembley on Saturday night – telling the crowd “there are things I absolutely cannot talk about”.