Chris O'Donnell and Wife Expecting Fifth Child
08/01/2007 AT 06:25 PM EDT
On the Today show on Wednesday, the actor was asked about his four children. "Another on the way," he replied, before high-fiving Today cohost Ann Curry.
He added, jokingly, "Yeah, we're just starting to figure out how it works. I think I know why this is happening, but we're really excited about it."
The 37-year-old actor married Fentress, a schoolteacher, in 1997. Their four other children are Lily, 7, Chip, 6, Charlie, 4, and Finley, 16 months.
O'Donnell also mentioned on Today that he has just finished filming Kit Kittredge: An American Girl Mystery, a drama based on the American Girl line of dolls – a project which gave his daughter Lily a true movie-making experience.
"She came to the set and hung out for four days," he said. O'Donnell is currently starring in the CIA miniseries The Company on TNT.