Davies loved Gorton 's design and to his surprise , the character was written into future episodes and became pivotal in the third series .
However , special effects designer Neil Gorton loved the idea and pushed to make sure the character lived .
Davies loved special effects designer 's design and to his surprise , the character was written into future episodes and became pivotal in the third series .
However , special effects designer Neil Gorton loved the idea and pushed to make sure the character lived .