Stephen Fry said he believes the Winter Olympics in Sochi will not be moved or boycotted after David Cameron said he did not support a boycott.
"My feeling now is that it isn't going to change," Fry told BBC News.
The broadcaster said his call to move the Games to another country was "probably not realistic in terms of being likely".
He added: "But it's realistic to call for it, and if it makes anybody look online and see how gays are being treated in Russia - it's horrifying and it's getting worse."
More top news
After the ambiguity of "Brexit means Brexit", the PM delivered her clearest statement yet on her vision for the country's exit from the EU.
A report warned overcrowded streets could lead to a 'Hillsborough scale' tragedy.
The PM confirmed an end to the country's existing trading arrangements as she outlined her 12 priorities for negotiating Britain's EU exit.