Canadian-born Keanu Reeves has vehemently denied ever having met Karen Sala, whose paternity lawsuit against the actor was rejected Thursday by an Ontario judge. ((Darren Calabrese/Canadian Press))

An Ontario judge has dismissed a paternity suit against actor Keanu Reeves.

Karen Sala alleged that Reeves was the father of her four adult children and was seeking $3 million a month in spousal support and $150,000 a month in retroactive child support.

A judge in Barrie, Ont., threw the case out Thursday, saying Sala's allegations were "so incredible" that no reasonable judge would accept them.

Judge Fred Graham said any trial would be "a waste of limited judicial resources." 

A DNA test showed Reeves was not the father of Sala's adult children, who are between 21 and 25 years old.

But Sala questioned the validity of the test, raising the possibility of tampering and suggesting that Reeves could have used hypnosis to affect the results.

"I do know for a fact that he is the biological father," Sala, who represented herself, told the judge, adding that she had proof but could not show it to the court.

Sala claimed she had a sexual relationship with Reeves, that they lived together and that he was present at the birth of three of her children.

Reeves, who grew up in Toronto before leaving for Hollywood in 1986, has repeatedly denied ever having met Sala.

The 45-year-old actor starred in the popular Matrix films as well as Speed and Bill & Ted's Excellent Adventure.