Just remember, at this point the allegations are just that: allegations.
Yes, it’s true that Spacey has been acting very contrite since the accusations became public. This doesn’t necessarily mean he’s guilty. He may have done other, lesser things he’s not proud of, and the accusations are spurring him to come clean.
The fact that multiple accusers have come forward since the original allegation became public only proves that this is a high-profile case that attracts attention, not that he’s “more guilty.”