The star, who made her name on medical drama House, was at the after party for a recent premiere of her new movie Rush, when a woman praised her for her work on Grey's Anatomy - a show Wilde has never been on.
She says, "This woman came up to me and she said, 'I think you were great,' and I said, 'Oh thanks,' and she said, 'I loved you on your show,' and I said, 'Oh thank you,' and she said, 'Grey's Anatomy, it's one of my favourites'.
"And I'm like, 'It's Ok, I get it, totally understandable, not on Grey's Anatomy,' and she said, 'Yes you were,' and I was like, 'No I wasn't, I'm so sorry, do you think I'm Ellen Pompeo? That's such a compliment...' and she said, 'No you were and I liked you on it and let me just give you my card and if you ever need something you call me'.
"She gave me her card and she's a psychic. I was like, 'Thus my scepticism about psychics'."