Chelsea Halfpenny
Halfpenny's professional acting career began in 2004 when she appeared in "Casualty" episode ""What Parents Do"", playing an eleven-year-old girl called Karine.
Christian Coulson
Coulson gained worldwide attention and popularity for his role in 2002's "Harry Potter and the Chamber of Secrets", in which he portrayed a 16-year-old Tom Riddle, even though Coulson was 24 years old at the time. However, in 2007, director David Yates indicated on "MTV" that Coulson would not reprise his role in "Half-Blood Prince", since, at 29, he was now too old.