The Mark Brennan actor confirmed that the pair had had a baby boy called Jackson in a lovely Instagram post, posting a series of pictures of the new arrival.
"Jackson Charles McGregor," he wrote. "We couldn't be more in love!!"
Scott and Bianka welcomed their first child, Evie, back in 2017, and the couple tied the knot last year.
The actor is due to return to Neighbours for its 35th anniversary this year as a guest, alongside a number of familiar faces.
Executive producer Jason Herbison recently opened up to Digital Spy about their plans for the occasion, saying: "The 35th anniversary is by far the biggest event we've ever undertaken. Without giving too much away, I can tell you that we have two major narratives taking place.
"One is warm and nostalgic, the other is high drama. Some of the returnees come back for a specific event, others get swept up in it organically, which is lots of fun."
He also teased more returning characters, adding: "There will be more familiar faces returning throughout 2020.
"There is actually one returning face from the not-too-distant past that I'm particularly excited about – this person has been top of my list to bring back ever since they left."
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Digital Spy Soap Scoop video – hit play below for all the latest Neighbours spoilers, as Ned and Yashvi face more danger.
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