Stephen Amell

Stephen Amell and his wife Cassandra Jean welcomed a baby girl on Oct. 15,Just Jared reports.

"Mavi Alexandra Jean Amell was born on Tuesday afternoon. Everyone is happy and healthy," a rep for the Arrow star said.

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Amell shared the good news Saturday, posting a photo of himself holding the newborn while watching his cousin Robbie Amell on The Tomorrow People on a hospital TV. "She came just in time for Amell Wednesdays," the actor wrote. (Arrow also airs on Wednesdays.)

Amell and the America's Next Top Model alum married in 2012 on vacation in the Caribbean. This is their first child.