Matt Damon, wife welcome baby girl

Matt Damon poses with his wife Luciana as they arrive for the screening of ''The Bourne Ultimatum'' in France, September 1, 2007.

LOS ANGELES (Reuters) - Actor Matt Damon and his wife welcomed their second daughter into the world on Wednesday, and all were "doing great," his spokeswoman said.

"She is a healthy, beautiful baby girl," spokeswoman Jennifer Allen told Reuters in an e-mail.

The couple named their daughter Gia Zavala Damon, but no other details were released.

Damon, 37, star of the "Bourne" action movies, and his wife, Luciana, 32, already have one daughter named Isabella, who was born in 2006. Luciana has another daughter from a previous marriage.

Damon had several small movie roles in the early 1990s, but saw his Hollywood breakthrough in 1997's "Good Will Hunting" playing a young janitor and mathematics genius with personality problems. He and his friend Ben Affleck won an Oscar for writing the movie's screenplay.

He later gained acclaim for his acting talents in dramas such as "The Talented Mr. Ripley" and proved his box-office drawing power in smash hit action flicks, "The Bourne Identity," "The Bourne Supremacy" and "The Bourne Ultimatum."

Reuters/Nielsen