Eddie Redmayne - I actually did [the Patronus test] twice as it launched. Both times I got the same Patronus. The people from Pottermore told me that that was incredibly rare because of the amount of algorithms it takes to choose the Patronus. So I must really be that thing.
My Patronus is a Dolphin~ A dolphin is both very playful and friendly. Like a dolphin, you are joyful, intelligent, and very funny. You enjoy life, and like to help others. You have so many happy thoughts that you can easily perform the patronus charm. Casting the charm becomes somewhat more difficult during a battle, but your concern for your friends helps you keep your focus.