People hoping to launch a career in Hollywood might want to indulge in teeth whitening treatment.

Gregg Sulkin, the 18-year-old British actor who is being hailed as the next Zac Effron, told the Express that Americans like their film and TV personalities to look really clean-cut and fresh-faced.

They do love straight white teeth and they seem to love my British accent too," the Avalon High star commented.

He added that he has been amazed with his sudden rise to stardom across the pond, as he once wanted to be a footballer and hadn't even considered acting when he was snapped up by the Disney Channel.

Sulkin may have to use teeth whitening treatment to keep his pearly whites gleaming, as he explained that Disney "has a very clean image and morality clauses".

Last month, dentist Yusuf Kaderbha told Cosmetic Dentistry Guide that people should avoid DIY methods of whitening such as baking soda and see a dentist instead.