Are Danny and his brother Chris very close?
Yes they are! Chris used to visit Danny on the set to hang out and play games (and do a guest appearance). Danny has yet to find a guest appearance on Chris’s TV show, “Malcolm in the Middle”, but he’s expressed an interest in doing so and I’m sure it will just be a matter of time. And now that Chris is living with Laura Prepon, Danny’s friend and costar, presumably he joins the cast of That 70s Show in some of their off-set activities.