Spacey is now under investigation in both the United Kingdom and the USA for a total of six sexual assault claims.
Another two men reported similar accounts to the Met police in February with one claiming the incident occurred in Gloucester in 2013 and the other in Lambeth in 2008.
The sexual assault investigations against the Oscar-winning actor in London have expanded, with additional alleged victims coming forward to accuse Spacey of criminal behavior.
In a conversation with Andrew Denton, host of talk show Interview, Pearce claimed Spacey was "handsy" and hard to work with.
Spacey apologized to Rapp in October for "deeply inappropriate drunken behavior" and later released a statement saying he was seeking unspecified treatment. Pearce, who worked with Spacey on the 1997 film LA Confidential, initially said that the numerous allegations which have been made against Spacey were a "tough one to talk about at the moment".
Guy Pearce has spoken about his encounters with actor Kevin Spacey while making L.A. Confidential. Fantastic actor. Incredible actor. Slightly hard time with Kevin.
"Thankfully I was 29, and not 14", he added. He also came out as a homosexual.
"This story has encouraged me to address other things about my life".
Following actor Anthony Rapp's accusations against Spacey in October 2017, he was dropped from a number of projects he was involved with.
The actor was sacked from the upcoming season of Netflix's "House of Cards", and saw his scenes for "All the Money in the World" refilmed with Christopher Plummer taking over his role.