Question: Which character did the actress Adrianna Bertola, who rose to popularity as a teenager, play in "Charlie and the Chocolate Factory the Musical"?

Context articles: Adrianna Bertola
Child actor
Freddie Highmore
Wonka Bar
Josie Griffiths
Willy Wonka &amp; the Chocolate Factory
Roald Dahl's Willy Wonka (musical)
Linda Harrison (actress)
Charlie and the Chocolate Factory (film)
Charlie and the Chocolate Factory

Adrianna Jean Bertola (born 9 February 1999) is an English teen actress and singer, who rose to attention playing Gretl in "The Sound of Music" and Sharice Brooks in "Casualty".
 Bertola also played Violet Beauregarde in "Charlie and the Chocolate Factory the Musical" from 22 May 2013 to 12 November 2013.
The term child actor or child actress is generally applied to a child acting on stage or in motion pictures or television, but also to an adult who began his or her acting career as a child; to avoid confusion, the latter is also called a "former child actor".
 Closely associated is teenage actor or teen actor, an actor who reached popularity as a teenager.
Alfred Thomas "Freddie" Highmore (born 14 February 1992) is an English actor, writer and director.
 He made his acting debut as a child in the comedy film "Women Talking Dirty" (1999), and has since starred in "Finding Neverland" (2004), "Five Children and It" (2004), "Charlie and the Chocolate Factory" (2005), "Arthur and the Invisibles" (2006), "August Rush" (2007), "The Spiderwick Chronicles" (2008), "Toast" (2010), and "The Art of Getting By" (2011).
 For "Finding Neverland" (2004) and "Charlie and the Chocolate Factory" (2005), he won the Critics' Choice Movie Award for Best Young Performer in two consecutive years.
The Wonka Bar is both a fictional candy bar, introduced as a key story point in the 1964 novel "Charlie and the Chocolate Factory" by Roald Dahl, and a type of consumer product candy bar inspired by the fictional confection.
 Wonka Bars appear in both film adaptations of the novel, "Willy Wonka & the Chocolate Factory" (1971) and "Charlie and the Chocolate Factory" (2005), and the play "Charlie and the Chocolate Factory the Musical" (2013) each with different packaging.
Josephine "Josie" Griffiths is a British child actress.
 She is most known for playing Matilda Wormwood in the Stratford production of "Matilda the Musical" she shared the role with two other young actresses Adrianna Bertola and Kerry Ingram.
 However, due to her height she was unable to transfer to the West End production.
 Griffiths has previously played Jemima Potts in a tour of "Chitty Chitty Bang Bang" and Marta von Trapp in "The Sound of Music".
 She lives in Dulwich and attends the James Allen's Girls' School.
Willy Wonka & the Chocolate Factory is a 1971 American musical fantasy film directed by Mel Stuart, and starring Gene Wilder as Willy Wonka.
 It is an adaptation of the 1964 novel "Charlie and the Chocolate Factory" by Roald Dahl.
 Dahl was credited with writing the film's screenplay; however, David Seltzer, who went uncredited in the film, was brought in to re-work Dahl's screenplay against his wishes, making major changes to the ending and adding musical numbers.
 These changes and other decisions made by the director led Dahl to disown the film.
Roald Dahl's Willy Wonka is a musical that combines elements of both Roald Dahl's book "Charlie and the Chocolate Factory" and of the 1971 movie "Willy Wonka & the Chocolate Factory" with newly created material.
 The musical has several versions: the original version which premiered in 2004, the Junior version, the Kids version, and the Theatre for Young Audiences version.
 All are owned by Music Theatre International, the company that owns the Willy Wonka license.
Linda Melson Harrison (born July 26, 1945) is an American television and film actress, and director and producer, who is internationally renowned for her role as Nova, Charlton Heston's mute mate in the classic science fiction film "Planet of the Apes" (1968) and the first sequel, "Beneath the Planet of the Apes"; she also had a cameo in Tim Burton's 2001 remake of the original.
 She was a regular cast member of the 1969-70 NBC television series "Bracken's World".
 She was the second wife of film producer Richard D. Zanuck ("Jaws", "Cocoon", "Driving Miss Daisy", "Charlie and the Chocolate Factory"); her youngest son is producer Dean Zanuck ("Road to Perdition", "Charlie and the Chocolate Factory").
Charlie and the Chocolate Factory is a 2005 musical fantasy film directed by Tim Burton and written by John August, based on the 1964 British novel of the same name by Roald Dahl.
 The film stars Johnny Depp as Willy Wonka and Freddie Highmore as Charlie Bucket.
 The storyline follows Charlie, who wins a contest and is along with four other contest winners, subsequently led by Wonka on a tour of his chocolate factory, the most magnificent in the world.
Charlie and the Chocolate Factory is a 1964 children's novel by British author Roald Dahl.
 The story features the adventures of young Charlie Bucket inside the chocolate factory of eccentric chocolatier Willy Wonka.