30 Dec Hottest Young Female Actresses. Channel teen sitcom Liv and Maddie ( ) and playing Mal, daughter of Maleficent in Descendants. 26 Apr There are some shining stars out there right now, as shown by these 20 hot young teen celebrities in Hollywood , but remember to shout out your favourites in the comments below if you feel we’ve missed anyone out. American actress, Bella Thorne, is just 19 years of age, but. The celebrities who are in their teens have it all – money, good looks and the fame. One of the major thing they still have that gives them a big advantage is also.