Lysette Anthony said she had told the Metropolitan police she was attacked by Weinstein in her London home in the late 1980s.
Weinstein was labelled “sick and depraved” on Saturday by his brother, Bob Weinstein, with whom he co-founded the companies Miramax and The Weinstein Company.
The Hollyoaks actor’s revelation follows several allegations of rape made by actors in the US against Weinstein, all of which he has strenuously denied.
A British actor has revealed she told police Harvey Weinstein raped her, as the organisation behind the Oscars expelled the producer over allegations of sexual abuse.