The beloved actress, who played Queen Clarisse Renaldi in both The Princess Diaries films, claims Prince William's wife has given the antiquated image of a princess a completely modern makeover.
Andrews insists the former Kate Middleton is showing the world the royal role she has taken on is all about responsibilities and work, not posh frocks, glass slippers and balls.
The actress tells the Los Angeles Times, "There's a lot more to princesses these days. Their civic duties alone. Look at Kate, the lovely princess we have in Britain right now.
"I think she's probably extremely hard working and has an enormous amount of responsibility speaking for the royal family and doing her royal duties and going out to her charities. It's a very busy and hard life."