Scott's wife, Marika Dominczyk, gave birth to a baby boy last Thursday after Scott announced the couple were expecting back in July.
A rep for the actor confirmed the news today.
Little Konrad will join brother Keller, aged 2 and sister Malina, aged 5.
The proud parents are "overjoyed," according to their rep.
Scott himself took to Twitter to thank fans for their good wishes:
The couple have both been very open on social media throughout the pregnancy - Marika in particular has been posting lots of sweet updates during her last trimester:
Congrats to the doting mum and dad!
