Lisa Bonet's manager has dismissed a cryptic tweet which appeared to reference the actress' former Tv co-star Bill Cosby, insisting the message was sent from a fake Twitter account which has now been closed down.

Bonet, who played the troubled funnyman's onscreen daughter in The Cosby Show, was believed to have passed comment on the funnyman's current sex scandal after a mysterious message appeared on a page attributed to her.

The tweet read, "According to the karma of past actions, one's destiny unfolds, even though everyone wants to be so lucky... Nothing stays in the dark 4ever (forever)!"

However, Bonet's talent manager Jillian Neal has revealed the message was sent from a fake account, which has since been shut down.

She tells, "I can assure you that is not her Twitter account and I have had the account suspended... (Bonet) continues to have no comment on the subject."

Cosby has hit headlines after a number of women came forward with historic sexual abuse allegations, claiming the comedian assaulted them years ago.

His accusers include model-turned-Tv personality Janice DICkinson, actresses Barbara Bowman and Louisa Moritz, and former Law & Order star Michelle Hurd.

The funnyman has made a point of staying silent on the matter, but has denied the allegations through his lawyer.