Who was the most pivotal character in The Imitation Game's success in codebreaking?

Codebreaking and Cryptography
The Imitation Game (2014)
Morten Tyldum
Movies
Codebreaking and Cryptography poll options
Codebreaking and Cryptography
The Imitation Game (2014)
Morten Tyldum
- Alan Turing
- Joan Clarke
- Hugh Alexander
- Peter Hilton