Justin Theroux can't help but marvel over his 3-week-old baby. "It's so hard to sum [fatherhood] up," Theroux, 54, said on the Thursday, April 23, broadcast of Today. "I just love looking into his eyeballs. It's just a wonderful thing. We're in that period now where it's a lot of quiet tip-toeing around the house and beautiful and [there's] occasional crying. It's wonderful." The Running Point star and his wife, Nicole Brydon Bloom, announced earlier this week that they recently welcomed their first baby.