Last week, the world lost an esteemed and talented actor. Alan Rickman was just 69 years old when he passed away following a fight with cancer. He leaves behind many films and theater productions. He became famous for playing the villain hans Gruber in the classic 80’s hit Die Hard, and many remember him for his portrayal of Severus Snape, an antagonist in the Harry Potter movie series.

While he may have often looked grim and sinister, he had a lighter side to him. It has also come to light that he enjoyed a good laugh and helped pull a few pranks on his co-stars. Here Daniel Radcliffe explains a somewhat embarrassing practical joke that was pulled on him by Alan Rickman and Michael Gambon, the man who played Dumbledore.