There are 4 variants of Anakin on the chart so just typing Anakin won't give you the type-in. The variants are Anakin Skywalker (Boy), Anakin Skywalker (Padawan), Anakin Skywalker (Jedi), and Anakin Skywalker (Ghost). For the first 3 you can also just type the corresponding movie number to make it easier (e.g. Anakin 1 for Anakin Skywalker (Boy)).
I don't have words to describe the beauty of this quiz. This game was the first one I ever completed to 100% :) Fantastic quiz. It brought back so many memories.