Answer:
He could see past my prosthetic leg, see my hidden talent trying to burst forth, and see that I could do more than help the actors with a quick costume change.
Step-by-step explanation:
This is the sentence that best shows that Mr. Bill is very open-minded and visionary. In this sentence, we learn that Mr. Bill decided to give the speaker a chance despite all his shortcomings. He was able to see past the actor's prosthetic leg and gave him a real chance. Not all directors would do what Mr. Bill did. Therefore, we can see that he is open-minded and visionary.