Wilson (The Sea Devils)
Wilson was a guard at the Master's prison on Fortress Island.
Biography
George Trenchard had Wilson demonstrate to the Third Doctor via a video screen in the prison governor's office that the guards were resistant to the Master's hypnotic abilities. Wilson entered the Master's cell, saying that Trenchard had sent him to ask if the Master wanted his book changed.
When the Master said he hadn't quite finished reading the book he had, Wilson turned to leave, but was stopped in his tracks when the Master suddenly asked him "Do you know who I am?"
When Wilson replied "You're the prisoner", the Master then appeared to attempt to exert his hypnotic influence on him, saying "I am the Master, and you will obey me." However, a seemingly resistant Wilson merely asked the Master to let him know when he had finished his book before leaving the cell.
Wilson was later killed by the Sea Devils when they invaded the prison. (TV: The Sea Devils)