The actor - who plays Sam Winchester in the show - announced via Twitter on Monday night (23 December) that his wife Genevieve had given birth to a baby boy.
He wrote: "My amazingly strong wife home-birthed a happy and healthy baby boy last night :). Please send love :))."
No further details including a name have been revealed.
Jared, 31, and Genevieve are also parents to son Thomas Colton, who was born 19 March 2012.
The couple met on the set of Supernatural, where Genevieve played the demon Ruby in series four, and married in Sun Valley, Idaho in 2010.
Congratulations to Jared and Genevieve!
More celebrities who have welcomed babies in Reveal's gallery below!
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