Alfonso Lincoln Ribeiro Jr. was born in Los Angeles on Sunday morning weighing in at 7 pounds, 10 ounces, and measuring 21.5 inches long.
"They are all healthy, happy, and exhausted," a rep for the actor said.
The former Fresh Prince of Bel-Air star also shared the news via Twitter.
Alfonso Lincoln Ribeiro Jr was born today at 10:45am. We are so blessed.— Alfonso Ribeiro (@alfonso_ribeiro) October 27, 2013
"We also want to thank our amazing Dr. Jason Rothbart. He was so great and a calming influence in the room," Ribeiro added.
This is the first child for Unkrich, 32, and the second for Ribeiro, who is already dad to his daughter Sienna, 11, with ex-wife Robin Stapler.
The couple has been married since October 2012. Fresh Prince costar Will Smith was a groomsman at the ceremony alongside 'N Sync's Joey Fatone and baseball player David Justice.
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