Back in 2014 William gushed over Elizabeth during an interview with The Guardian.
"I married my [fourth] wife, Elizabeth, 14 years ago and I was attracted by her beauty first of all, which was an old syndrome for me … and I think I lucked out because she had so many other qualities as well," said the actor at the time.
"Elizabeth has a great sense of humour and a great sense of adventure and she's very nurturing. That combination of beauty, style, intelligence, humour and loving horses and dogs and children and loving her home and making a home for us, is quite a combination.
"So I've been very lucky because all that happened by accident. Love is what makes the cold universe warm."
William has three other ex-wives, and three daughters.
The actor was on Star Trek from 1966 until 1966. Other notable TV shows include TJ Hooker (1982 until 1986) and Boston Legal from 2004 until 2008.