"Oh, God, he is just..he's amazing," the 33-year-old doting dad said. "I love him so much. He's just a ball of joy. He's terrific."
"He was born nine weeks premature, so we spent a month in the intensive care unit with him. But he's totally healthy now. He is just so perfect and I love him so much."
Faris and Pratt welcomed their baby boy in August, after tying the knot in 2009.