There are just some move roles that can define an actor and the career path the end up on and for some stars, these super memorable roles came to them when they were kids. No matter how old they get and what else they may do, these roles will still be what they're most loved for.
Click through the gallery to see which movie roles these actors will always be most known for and to see how much they've changed since starring in these movies. Then drop a comment below telling us which of these films is your fave!
Taylor Lautner as Sharkboy in The Adventures of Sharkboy and Lavagirl. Click to the next slide to see what he looks like now!