Jimmy Savile's former personal assistant, Janet Cope, told ITV's Exposure that although she had never seen him abuse anyone, he was a controlling person.
She added: "I knew how he operated so I was very wary of him and I felt there was an undercurrent, there was a bad side, which not many people saw."
At Stoke Mandeville Hospital, Ms Cope said Savile held a position of real authority, adding: "He controlled everything. He controlled me. Everybody was - I'm going to use the word frightened - of him."
More top news
Liverpool edged an epic penalty shootout to beat Middlesbrough and progress to the fourth round of the Capital One Cup.
The world famous musical, which has been running on Broadway since 1997, has broken records earning more than £2.8 billion.
There will be wet weather around tonight with rain drifting from north to south which will lead to scattered showers tomorrow morning.