Jensen Ackles
is a proud new papa!

On Thursday, the "Supernatural" star and his wife Danneel Harris Ackles welcomed their first child together, Justice Jay Ackles, and shared the big news via Twitter.

Danneel posted, "We are happy to announce the birth of our precious baby girl," adding, "She was born happy and healthy."

Danneel is best-known for her roles on "One Life to Live" and "One Tree Hill" and Jensen starred on "Smallville" before landing the part of Dean on "Supernatural."

Congrats to the happy couple!

Click "Launch Gallery" above to see more celebrity baby names!

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