Actors you thought were going to be "a thing" but you were completely wrong about.
Michelle Ryan. She was in the short lived "Bionic Woman" show. She was a decent actress and was hotter than Satan falling into a volcano while eating a jalapeño pepper. I thought she would be big just on her looks alone but she never did anything big afterwards.
Aidan Turner. He was sort of big in Ireland. I saw him in "Being Human" but he left the show to do "The Hobbit" movies. He even had the movie star look that the ladies would love. I thought he would be a huge star but I was completely wrong.
Dillon Freasier. He was the kid in "There Will be Blood". He held his own opposite Daniel Day-Lewis. How was I supposed to know he was going to be in nothing afterward? Literally not a single thing.
Paul Walter Hauser. He was brilliant in "Richard Jewell". I thought he was going to get an Oscar nomination. He didn't and has been in mediocre movies since.