William Shatner has been sued for $170 million by a man claiming to be his son.

Peter Sloan, 59, filed the libel, defamation and slander civil lawsuit last week against Shatner, 85, in Florida, according to an article on Monday by Page Six.

The lawsuit demanded that Shatner submit to a DNA test to confirm paternity and cease claiming that he's not Sloan's father.

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Civil suit: William Shatner, shown last month in New York City, has been sued for $170 million by a man claiming to be his son

Shatner has denied that Sloan is his son and the actor's attorneys have sent Sloan letters asking him to stop using the Shatner name.

Sloan stated in his lawsuit that he met Shatner in 1984 on the set of his TV series T.J. Hooker and the actor initially 'admitted he was the plaintiff's father'.

A representative for Shatner a few days later called Sloan and said that Shatner was 'totally denying paternity at this point' and also was refusing a DNA test, according to the lawsuit.

Paternity test: Peter Sloan, shown with Shatner in an undated photo, was seeking a DNA test to prove paternity

Sloan later registered the Web domain petershatner.com and started a radio show in 2011 under the name Peter Shatner, court documents said.

Shatner's lawyer Eric Hyman wrote to Sloan in November 2011 and said the actor 'confirmed to me once again that he is not your father. There have been many people over the years who have claimed to be his children or other relatives.

He is an incredibly busy, 80-year-old man, and is not interested in spending time discussing this issue with you.'

Police drama: Shatner is shown in 1984 with Adrian Zmed, James Darren and Heather Locklear in a still from ABC's T.J. Hooker

Sloan in his lawsuit alleged that his Peter Shatner account on Twitter was shutdown for violating its impersonation policy and his Internet Movie Database account also was removed.

The lawsuit was seeking $30 million in compensatory damages, $90 million in punitive damages and $50 million for pain and suffering.

'Mr. Shatner has three lovely daughters, but no sons . . . Mr. Shatner is aware of the lawsuit, but there’s nothing there because he isn’t his father,' a represenative told Page Six.

Father and daughters: The Star Trek star is shown in March 2008 with daughters Lisabeth and Leslie in Los Angeles

Husband and wife: Shatner is shown in September 2015 with wife Elizabeth in Los Angeles

The Canadian actor has been married four times and has daughters Leslie, Lisabeth and Melanie from his first marriage to Canadain actress Gloria Rand.

Shatner has been married since 2001 to Elizabeth Martin.

He remains best known for his portrayal of USS Enterprise commander Captain James T. Kirk in the Star Trek franchise.