Brielle Ava Perry (born November 23, 1998) is an American actor, best known for her role as Gabriella Duncan on the Disney Channel family sitcom Good Luck Charlie,[2] and for her role as Amelia Elliston III in Disney's High School Musical spin-off film Sharpay's Fabulous Adventure. She is the younger sister of Bradley Steven Perry. Trivia Before Brielle got her start in Good Luck Charlie,she trained in ballet,tap,and jazz