Sarah Chalke: My Son ‘Fell In Love’ with Brad Garrett :    Onscreen the relationship between Sarah Chalke and costar Brad Garrett may be strained but off-camera, the chemistry is going strong — at least for the actor and her son Charlie Rhodes!

“Brad and Charlie just kind of fell in love, it was the sweetest thing,” the How to Live with Your Parents for the Rest of Your Life star, 36, told PEOPLE while promoting the show with creator Claudia Lonow at the TCAs.