On a new Pottermore video, the actors [Tom Felton] ([Draco Malfoy]), [Matthew Lewis] ([Neville Longbottom]), [Jason Isaacs] (Lucius Malfoy) and [Warwick Davis] (Professor Flitwick) chose the jobs they would like to have if J.K. Rowling’s Wizarding World was real.
None of them chose the professions their own characters have. It could have been risky for Matthew: he ended up choosing to play Quidditch despite Neville’s bad past experiences.
Warwick, taking into account his love for books, decided that he would like to work in a magic library that would organize itself. Tom and Jason, differently from their characters that followed careers in the Ministry of Magic, chose to be a Daily Prophet reporter and a wand technician, respectively.