Kenneth Branagh As Gilderoy Lockhart
If there was one constant in the Harry Potter films, it had to be the introduction of a new Defense Against the Dark Arts teacher. Kenneth Branagh was definitely one of the most notable additions to the Harry Potter franchise. In addition to this fabulous role the amazing British actor, directed and starred in a number of Shakespearean adaptations, including Henry V, Othello, Hamlet, and others. For this, he received numerous nominations for Best Actor, Best Director, and Best Screenplay.
Maggie Smith As Minerva McGonagall
Maggie Smith is an Academy Award winner who over the years, has played many memorable roles on the English stage, screen, and television. This is the reason that Queen Elizabeth II made her a Dame in 1990. In the Harry Potter film franchise, Smith played Minerva McGonagall and truly did a remarkable job in her role. The 86 year-old actress has since starred in numerous other films and TV shows, these include, Downton Abbey, The Lady In The Van, and Nanny McPhee Returns.