The birth of Angelina Jolie and Brad Pitt's twins made Jon Voight a grandfather twice over again -- and he couldn't be happier!

"All I can say is it is like any other father," Jon told ET at a press conference to introduce the new season of "24," of which he is a part. "It is the most exciting thing to have new souls coming in. There is nothing more exciting than that and that they are Angie's and Brad's babies. It is a wonderful thing. Of course, my heart is with them and all my love goes to them."

Jon wouldn't reveal how he learned the news, and despite his filming schedule for "24," he says, "If they call me, I will find a way to get there."

Angie's aren't the only twins in the family. Jon shared that he has a niece with twins and from that experience he knows that "Angie is in for a handful."

As for the babies names, Jon comments that while unusual, "I think they are beautiful. The grandfather is Knox and Marceline is Angie's mom."