Actress Katie Holmes is desperate to have more children. The Batman Begins star - who is already mum to one-year-old Suri and stepmother to husband Tom Cruise's teenage son and daughter - is keen to add to the brood. She tells U.S. TV show Entertainment Tonight in an interview to be broadcast on Monday (04Jun07), "We're having the best time, it's so amazing. "We have so many kids in our house, there's always this wonderful chatter and the great noise of kids. "He's a great father and so it came to no shock that when we had Suri he was amazing with the baby."