The Old Vic theater in London said on Thursday it had received 20 separate allegations of inappropriate conduct by Kevin Spacey from 20 men who came into contact with him at the theater, or in connection with it, between 1995 and 2013.

The theater was reporting on the findings of an investigation it launched on Oct. 31.

Richard Miskella, a lawyer from the firm Lewis Silkin who conducted the investigation on behalf of the Old Vic, said that it had encouraged 14 of the men to talk to the police because of the nature of the allegations.