Ali Larter's publicist says the U.S. actress has given birth to a son, her first child with her husband, writer-actor Hayes MacArthur.
His name is Theodore Hayes, the Web site said.
Larter, 34, is best known for her work on the sci-fi TV series "Heroes."
Her film credits include "Varsity Blues," "House on Haunted Hill," "Final Destination" and "Jay and Silent Bob Strike Back."