8. Taylor Lautner
Taylor Lautner originally was simply meant to play Jacob in the first Twilight film. Jacob changes during the book from a skinny man to a powerful wolfman. However, they thought about replacing Lautner with an older actor because, when he was cast, he didn’t immediately fit his muscular image. He was just sixteen. Lautner worked out hard and grew muscle because he had a will to keep the part. However, to get the role, he had to apply again, which added to his anxiety.
