12/22/2010 10:01 am ET Updated May 25, 2011

Ali Larter, Hayes MacArthur Have Baby Boy, Theodore Hayes MacArthur

From hero to mommy -- a heroic role in itself.

'Heroes' star Ali Larter and husband Hayes MacArthur announced on Tuesday that she had given birth to a baby boy, giving it the very presidential sounding name of Theodore Hayes MacArthur. Revealing the news exclusively to Us Weekly, the pair said, "He's our perfect Christmas present."

Larter and MacArthur dated for seven long years before tying the knot in 2009 in Kennebunkport, Maine.