15ROBERT DOWNEY JR. - SAY ANYTHING
Long before he played a genius billionaire playboy philanthropist for the MCU, Robert Downey Jr. was a teenage heartthrob in '80s movies like Weird Science, The Pick-Up Artist, 1969, and Johnny Be Good. One classic '80s movie that alludes his resume is Say Anything, but he came very close to
getting cast in the lead as boy next door Lloyd Dobler.
The part went to John Cusack instead, but before Cusack even auditioned for the part, Downey was offered it. Because he did not like the script attached to the film, he declined in favor of starring in Chances Are and True Believer. Both films turned out to be stinkers at the box office, and Say Anything was a hit with critics and audiences. Downey still has to be kicking himself over his choice.