By Joyce Eng,
The baby arrived Sunday and is the first child for the actress and her boyfriend, financier Arpad Busson. No other details were released. Thurman has two children, daughter Maya, 14, and son Levon, 10, with ex-husband Ethan Hawke. Busson has two sons with Elle Macpherson.
Thurman, who recurred on Smash last season, started dating Busson in 2007. The pair briefly split in 2009 before reuniting.
Related Articles on TVGuide.com
Other Links From TVGuide.com