Donald Faison and CaCee Cobb Welcome Baby Boy

Donald Faison and CaCee Cobb welcomed their first child together on Thursday.

"Yesterday @caceecobb and I welcomed the most amazing little boy into our lives! Oh Happy Day!!" Faison tweeted. "The happiest day of my life," Cobb added.

See Robin Williams, Michael J. Fox and more familiar faces returning to fall TV

"Thank you @caceecobb. @donald_faison and I will take it from here," Faison's Scrubsco-star and best friend, Zach Braff, joked.

Fasion is already father to Kobe, 11, twins Dade and Kaya, 13, and Sean, 16, from previous relationships. Faison and Cobb married in December after dating for six years.

Faison currently stars on TV Land's The Exes.